2 * Wi-Fi Direct - P2P module
3 * Copyright (c) 2009-2010, Atheros Communications
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
13 #include "common/defs.h"
14 #include "common/ieee802_11_defs.h"
15 #include "common/ieee802_11_common.h"
16 #include "common/wpa_ctrl.h"
17 #include "crypto/sha256.h"
18 #include "crypto/crypto.h"
19 #include "wps/wps_i.h"
24 static void p2p_state_timeout(void *eloop_ctx
, void *timeout_ctx
);
25 static void p2p_device_free(struct p2p_data
*p2p
, struct p2p_device
*dev
);
26 static void p2p_process_presence_req(struct p2p_data
*p2p
, const u8
*da
,
27 const u8
*sa
, const u8
*data
, size_t len
,
29 static void p2p_process_presence_resp(struct p2p_data
*p2p
, const u8
*da
,
30 const u8
*sa
, const u8
*data
,
32 static void p2p_ext_listen_timeout(void *eloop_ctx
, void *timeout_ctx
);
33 static void p2p_scan_timeout(void *eloop_ctx
, void *timeout_ctx
);
37 * p2p_scan recovery timeout
39 * Many drivers are using 30 second timeout on scan results. Allow a bit larger
40 * timeout for this to avoid hitting P2P timeout unnecessarily.
42 #define P2P_SCAN_TIMEOUT 35
45 * P2P_PEER_EXPIRATION_AGE - Number of seconds after which inactive peer
46 * entries will be removed
48 #ifndef P2P_PEER_EXPIRATION_AGE
49 #define P2P_PEER_EXPIRATION_AGE 60
50 #endif /* P2P_PEER_EXPIRATION_AGE */
53 void p2p_expire_peers(struct p2p_data
*p2p
)
55 struct p2p_device
*dev
, *n
;
56 struct os_reltime now
;
60 dl_list_for_each_safe(dev
, n
, &p2p
->devices
, struct p2p_device
, list
) {
61 if (dev
->last_seen
.sec
+ P2P_PEER_EXPIRATION_AGE
>= now
.sec
)
64 if (dev
== p2p
->go_neg_peer
) {
66 * GO Negotiation is in progress with the peer, so
67 * don't expire the peer entry until GO Negotiation
73 if (p2p
->cfg
->go_connected
&&
74 p2p
->cfg
->go_connected(p2p
->cfg
->cb_ctx
,
75 dev
->info
.p2p_device_addr
)) {
77 * We are connected as a client to a group in which the
78 * peer is the GO, so do not expire the peer entry.
80 os_get_reltime(&dev
->last_seen
);
84 for (i
= 0; i
< p2p
->num_groups
; i
++) {
85 if (p2p_group_is_client_connected(
86 p2p
->groups
[i
], dev
->info
.p2p_device_addr
))
89 if (i
< p2p
->num_groups
) {
91 * The peer is connected as a client in a group where
92 * we are the GO, so do not expire the peer entry.
94 os_get_reltime(&dev
->last_seen
);
98 p2p_dbg(p2p
, "Expiring old peer entry " MACSTR
,
99 MAC2STR(dev
->info
.p2p_device_addr
));
100 dl_list_del(&dev
->list
);
101 p2p_device_free(p2p
, dev
);
106 static const char * p2p_state_txt(int state
)
115 case P2P_CONNECT_LISTEN
:
116 return "CONNECT_LISTEN";
119 case P2P_LISTEN_ONLY
:
120 return "LISTEN_ONLY";
121 case P2P_WAIT_PEER_CONNECT
:
122 return "WAIT_PEER_CONNECT";
123 case P2P_WAIT_PEER_IDLE
:
124 return "WAIT_PEER_IDLE";
125 case P2P_SD_DURING_FIND
:
126 return "SD_DURING_FIND";
127 case P2P_PROVISIONING
:
128 return "PROVISIONING";
129 case P2P_PD_DURING_FIND
:
130 return "PD_DURING_FIND";
133 case P2P_INVITE_LISTEN
:
134 return "INVITE_LISTEN";
141 const char * p2p_get_state_txt(struct p2p_data
*p2p
)
143 return p2p_state_txt(p2p
->state
);
147 struct p2ps_advertisement
* p2p_get_p2ps_adv_list(struct p2p_data
*p2p
)
149 return p2p
? p2p
->p2ps_adv_list
: NULL
;
153 void p2p_set_intended_addr(struct p2p_data
*p2p
, const u8
*intended_addr
)
155 if (p2p
&& intended_addr
)
156 os_memcpy(p2p
->intended_addr
, intended_addr
, ETH_ALEN
);
160 u16
p2p_get_provisioning_info(struct p2p_data
*p2p
, const u8
*addr
)
162 struct p2p_device
*dev
= NULL
;
167 dev
= p2p_get_device(p2p
, addr
);
169 return dev
->wps_prov_info
;
175 void p2p_clear_provisioning_info(struct p2p_data
*p2p
, const u8
*addr
)
177 struct p2p_device
*dev
= NULL
;
182 dev
= p2p_get_device(p2p
, addr
);
184 dev
->wps_prov_info
= 0;
188 void p2p_set_state(struct p2p_data
*p2p
, int new_state
)
190 p2p_dbg(p2p
, "State %s -> %s",
191 p2p_state_txt(p2p
->state
), p2p_state_txt(new_state
));
192 p2p
->state
= new_state
;
194 if (new_state
== P2P_IDLE
&& p2p
->pending_channel
) {
195 p2p_dbg(p2p
, "Apply change in listen channel");
196 p2p
->cfg
->reg_class
= p2p
->pending_reg_class
;
197 p2p
->cfg
->channel
= p2p
->pending_channel
;
198 p2p
->pending_reg_class
= 0;
199 p2p
->pending_channel
= 0;
204 void p2p_set_timeout(struct p2p_data
*p2p
, unsigned int sec
, unsigned int usec
)
206 p2p_dbg(p2p
, "Set timeout (state=%s): %u.%06u sec",
207 p2p_state_txt(p2p
->state
), sec
, usec
);
208 eloop_cancel_timeout(p2p_state_timeout
, p2p
, NULL
);
209 eloop_register_timeout(sec
, usec
, p2p_state_timeout
, p2p
, NULL
);
213 void p2p_clear_timeout(struct p2p_data
*p2p
)
215 p2p_dbg(p2p
, "Clear timeout (state=%s)", p2p_state_txt(p2p
->state
));
216 eloop_cancel_timeout(p2p_state_timeout
, p2p
, NULL
);
220 void p2p_go_neg_failed(struct p2p_data
*p2p
, int status
)
222 struct p2p_go_neg_results res
;
223 struct p2p_device
*peer
= p2p
->go_neg_peer
;
228 eloop_cancel_timeout(p2p_go_neg_wait_timeout
, p2p
, NULL
);
229 if (p2p
->state
!= P2P_SEARCH
) {
231 * Clear timeouts related to GO Negotiation if no new p2p_find
234 p2p_clear_timeout(p2p
);
235 p2p_set_state(p2p
, P2P_IDLE
);
238 peer
->flags
&= ~P2P_DEV_PEER_WAITING_RESPONSE
;
239 peer
->wps_method
= WPS_NOT_READY
;
241 wpabuf_free(peer
->go_neg_conf
);
242 peer
->go_neg_conf
= NULL
;
243 p2p
->go_neg_peer
= NULL
;
245 os_memset(&res
, 0, sizeof(res
));
247 os_memcpy(res
.peer_device_addr
, peer
->info
.p2p_device_addr
, ETH_ALEN
);
248 os_memcpy(res
.peer_interface_addr
, peer
->intended_addr
, ETH_ALEN
);
249 p2p
->cfg
->go_neg_completed(p2p
->cfg
->cb_ctx
, &res
);
253 static void p2p_listen_in_find(struct p2p_data
*p2p
, int dev_disc
)
259 p2p_dbg(p2p
, "Starting short listen state (state=%s)",
260 p2p_state_txt(p2p
->state
));
262 if (p2p
->pending_listen_freq
) {
263 /* We have a pending p2p_listen request */
264 p2p_dbg(p2p
, "p2p_listen command pending already");
268 freq
= p2p_channel_to_freq(p2p
->cfg
->reg_class
, p2p
->cfg
->channel
);
270 p2p_dbg(p2p
, "Unknown regulatory class/channel");
274 if (os_get_random((u8
*) &r
, sizeof(r
)) < 0)
276 tu
= (r
% ((p2p
->max_disc_int
- p2p
->min_disc_int
) + 1) +
277 p2p
->min_disc_int
) * 100;
278 if (p2p
->max_disc_tu
>= 0 && tu
> (unsigned int) p2p
->max_disc_tu
)
279 tu
= p2p
->max_disc_tu
;
280 if (!dev_disc
&& tu
< 100)
281 tu
= 100; /* Need to wait in non-device discovery use cases */
282 if (p2p
->cfg
->max_listen
&& 1024 * tu
/ 1000 > p2p
->cfg
->max_listen
)
283 tu
= p2p
->cfg
->max_listen
* 1000 / 1024;
286 p2p_dbg(p2p
, "Skip listen state since duration was 0 TU");
287 p2p_set_timeout(p2p
, 0, 0);
291 ies
= p2p_build_probe_resp_ies(p2p
, NULL
, 0);
295 p2p
->pending_listen_freq
= freq
;
296 p2p
->pending_listen_sec
= 0;
297 p2p
->pending_listen_usec
= 1024 * tu
;
299 if (p2p
->cfg
->start_listen(p2p
->cfg
->cb_ctx
, freq
, 1024 * tu
/ 1000,
301 p2p_dbg(p2p
, "Failed to start listen mode");
302 p2p
->pending_listen_freq
= 0;
308 int p2p_listen(struct p2p_data
*p2p
, unsigned int timeout
)
313 p2p_dbg(p2p
, "Going to listen(only) state");
315 if (p2p
->pending_listen_freq
) {
316 /* We have a pending p2p_listen request */
317 p2p_dbg(p2p
, "p2p_listen command pending already");
321 freq
= p2p_channel_to_freq(p2p
->cfg
->reg_class
, p2p
->cfg
->channel
);
323 p2p_dbg(p2p
, "Unknown regulatory class/channel");
327 p2p
->pending_listen_sec
= timeout
/ 1000;
328 p2p
->pending_listen_usec
= (timeout
% 1000) * 1000;
330 if (p2p
->p2p_scan_running
) {
331 if (p2p
->start_after_scan
== P2P_AFTER_SCAN_CONNECT
) {
332 p2p_dbg(p2p
, "p2p_scan running - connect is already pending - skip listen");
335 p2p_dbg(p2p
, "p2p_scan running - delay start of listen state");
336 p2p
->start_after_scan
= P2P_AFTER_SCAN_LISTEN
;
340 ies
= p2p_build_probe_resp_ies(p2p
, NULL
, 0);
344 p2p
->pending_listen_freq
= freq
;
346 if (p2p
->cfg
->start_listen(p2p
->cfg
->cb_ctx
, freq
, timeout
, ies
) < 0) {
347 p2p_dbg(p2p
, "Failed to start listen mode");
348 p2p
->pending_listen_freq
= 0;
354 p2p_set_state(p2p
, P2P_LISTEN_ONLY
);
360 static void p2p_device_clear_reported(struct p2p_data
*p2p
)
362 struct p2p_device
*dev
;
363 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
364 dev
->flags
&= ~P2P_DEV_REPORTED
;
371 * p2p_get_device - Fetch a peer entry
372 * @p2p: P2P module context from p2p_init()
373 * @addr: P2P Device Address of the peer
374 * Returns: Pointer to the device entry or %NULL if not found
376 struct p2p_device
* p2p_get_device(struct p2p_data
*p2p
, const u8
*addr
)
378 struct p2p_device
*dev
;
379 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
380 if (os_memcmp(dev
->info
.p2p_device_addr
, addr
, ETH_ALEN
) == 0)
388 * p2p_get_device_interface - Fetch a peer entry based on P2P Interface Address
389 * @p2p: P2P module context from p2p_init()
390 * @addr: P2P Interface Address of the peer
391 * Returns: Pointer to the device entry or %NULL if not found
393 struct p2p_device
* p2p_get_device_interface(struct p2p_data
*p2p
,
396 struct p2p_device
*dev
;
397 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
398 if (os_memcmp(dev
->interface_addr
, addr
, ETH_ALEN
) == 0)
406 * p2p_create_device - Create a peer entry
407 * @p2p: P2P module context from p2p_init()
408 * @addr: P2P Device Address of the peer
409 * Returns: Pointer to the device entry or %NULL on failure
411 * If there is already an entry for the peer, it will be returned instead of
412 * creating a new one.
414 static struct p2p_device
* p2p_create_device(struct p2p_data
*p2p
,
417 struct p2p_device
*dev
, *oldest
= NULL
;
420 dev
= p2p_get_device(p2p
, addr
);
424 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
426 if (oldest
== NULL
||
427 os_reltime_before(&dev
->last_seen
, &oldest
->last_seen
))
430 if (count
+ 1 > p2p
->cfg
->max_peers
&& oldest
) {
431 p2p_dbg(p2p
, "Remove oldest peer entry to make room for a new peer");
432 dl_list_del(&oldest
->list
);
433 p2p_device_free(p2p
, oldest
);
436 dev
= os_zalloc(sizeof(*dev
));
439 dl_list_add(&p2p
->devices
, &dev
->list
);
440 os_memcpy(dev
->info
.p2p_device_addr
, addr
, ETH_ALEN
);
446 static void p2p_copy_client_info(struct p2p_device
*dev
,
447 struct p2p_client_info
*cli
)
449 p2p_copy_filter_devname(dev
->info
.device_name
,
450 sizeof(dev
->info
.device_name
),
451 cli
->dev_name
, cli
->dev_name_len
);
452 dev
->info
.dev_capab
= cli
->dev_capab
;
453 dev
->info
.config_methods
= cli
->config_methods
;
454 os_memcpy(dev
->info
.pri_dev_type
, cli
->pri_dev_type
, 8);
455 dev
->info
.wps_sec_dev_type_list_len
= 8 * cli
->num_sec_dev_types
;
456 os_memcpy(dev
->info
.wps_sec_dev_type_list
, cli
->sec_dev_types
,
457 dev
->info
.wps_sec_dev_type_list_len
);
461 static int p2p_add_group_clients(struct p2p_data
*p2p
, const u8
*go_dev_addr
,
462 const u8
*go_interface_addr
, int freq
,
463 const u8
*gi
, size_t gi_len
,
464 struct os_reltime
*rx_time
)
466 struct p2p_group_info info
;
468 struct p2p_device
*dev
;
473 if (p2p_group_info_parse(gi
, gi_len
, &info
) < 0)
477 * Clear old data for this group; if the devices are still in the
478 * group, the information will be restored in the loop following this.
480 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
481 if (os_memcmp(dev
->member_in_go_iface
, go_interface_addr
,
483 os_memset(dev
->member_in_go_iface
, 0, ETH_ALEN
);
484 os_memset(dev
->member_in_go_dev
, 0, ETH_ALEN
);
488 for (c
= 0; c
< info
.num_clients
; c
++) {
489 struct p2p_client_info
*cli
= &info
.client
[c
];
490 if (os_memcmp(cli
->p2p_device_addr
, p2p
->cfg
->dev_addr
,
492 continue; /* ignore our own entry */
493 dev
= p2p_get_device(p2p
, cli
->p2p_device_addr
);
495 if (dev
->flags
& (P2P_DEV_GROUP_CLIENT_ONLY
|
496 P2P_DEV_PROBE_REQ_ONLY
)) {
498 * Update information since we have not
499 * received this directly from the client.
501 p2p_copy_client_info(dev
, cli
);
504 * Need to update P2P Client Discoverability
505 * flag since it is valid only in P2P Group
508 dev
->info
.dev_capab
&=
509 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
510 dev
->info
.dev_capab
|=
512 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
514 if (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
) {
515 dev
->flags
&= ~P2P_DEV_PROBE_REQ_ONLY
;
518 dev
= p2p_create_device(p2p
, cli
->p2p_device_addr
);
521 dev
->flags
|= P2P_DEV_GROUP_CLIENT_ONLY
;
522 p2p_copy_client_info(dev
, cli
);
523 dev
->oper_freq
= freq
;
524 p2p
->cfg
->dev_found(p2p
->cfg
->cb_ctx
,
525 dev
->info
.p2p_device_addr
,
527 dev
->flags
|= P2P_DEV_REPORTED
| P2P_DEV_REPORTED_ONCE
;
530 os_memcpy(dev
->interface_addr
, cli
->p2p_interface_addr
,
532 os_memcpy(&dev
->last_seen
, rx_time
, sizeof(struct os_reltime
));
533 os_memcpy(dev
->member_in_go_dev
, go_dev_addr
, ETH_ALEN
);
534 os_memcpy(dev
->member_in_go_iface
, go_interface_addr
,
536 dev
->flags
|= P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT
;
543 static void p2p_copy_wps_info(struct p2p_data
*p2p
, struct p2p_device
*dev
,
544 int probe_req
, const struct p2p_message
*msg
)
546 os_memcpy(dev
->info
.device_name
, msg
->device_name
,
547 sizeof(dev
->info
.device_name
));
549 if (msg
->manufacturer
&&
550 msg
->manufacturer_len
< sizeof(dev
->info
.manufacturer
)) {
551 os_memset(dev
->info
.manufacturer
, 0,
552 sizeof(dev
->info
.manufacturer
));
553 os_memcpy(dev
->info
.manufacturer
, msg
->manufacturer
,
554 msg
->manufacturer_len
);
557 if (msg
->model_name
&&
558 msg
->model_name_len
< sizeof(dev
->info
.model_name
)) {
559 os_memset(dev
->info
.model_name
, 0,
560 sizeof(dev
->info
.model_name
));
561 os_memcpy(dev
->info
.model_name
, msg
->model_name
,
562 msg
->model_name_len
);
565 if (msg
->model_number
&&
566 msg
->model_number_len
< sizeof(dev
->info
.model_number
)) {
567 os_memset(dev
->info
.model_number
, 0,
568 sizeof(dev
->info
.model_number
));
569 os_memcpy(dev
->info
.model_number
, msg
->model_number
,
570 msg
->model_number_len
);
573 if (msg
->serial_number
&&
574 msg
->serial_number_len
< sizeof(dev
->info
.serial_number
)) {
575 os_memset(dev
->info
.serial_number
, 0,
576 sizeof(dev
->info
.serial_number
));
577 os_memcpy(dev
->info
.serial_number
, msg
->serial_number
,
578 msg
->serial_number_len
);
581 if (msg
->pri_dev_type
)
582 os_memcpy(dev
->info
.pri_dev_type
, msg
->pri_dev_type
,
583 sizeof(dev
->info
.pri_dev_type
));
584 else if (msg
->wps_pri_dev_type
)
585 os_memcpy(dev
->info
.pri_dev_type
, msg
->wps_pri_dev_type
,
586 sizeof(dev
->info
.pri_dev_type
));
588 if (msg
->wps_sec_dev_type_list
) {
589 os_memcpy(dev
->info
.wps_sec_dev_type_list
,
590 msg
->wps_sec_dev_type_list
,
591 msg
->wps_sec_dev_type_list_len
);
592 dev
->info
.wps_sec_dev_type_list_len
=
593 msg
->wps_sec_dev_type_list_len
;
596 if (msg
->capability
) {
598 * P2P Client Discoverability bit is reserved in all frames
599 * that use this function, so do not change its value here.
601 dev
->info
.dev_capab
&= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
602 dev
->info
.dev_capab
|= msg
->capability
[0] &
603 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
604 dev
->info
.group_capab
= msg
->capability
[1];
607 if (msg
->ext_listen_timing
) {
608 dev
->ext_listen_period
= WPA_GET_LE16(msg
->ext_listen_timing
);
609 dev
->ext_listen_interval
=
610 WPA_GET_LE16(msg
->ext_listen_timing
+ 2);
614 u16 new_config_methods
;
615 new_config_methods
= msg
->config_methods
?
616 msg
->config_methods
: msg
->wps_config_methods
;
617 if (new_config_methods
&&
618 dev
->info
.config_methods
!= new_config_methods
) {
619 p2p_dbg(p2p
, "Update peer " MACSTR
620 " config_methods 0x%x -> 0x%x",
621 MAC2STR(dev
->info
.p2p_device_addr
),
622 dev
->info
.config_methods
,
624 dev
->info
.config_methods
= new_config_methods
;
630 static void p2p_update_peer_vendor_elems(struct p2p_device
*dev
, const u8
*ies
,
636 wpabuf_free(dev
->info
.vendor_elems
);
637 dev
->info
.vendor_elems
= NULL
;
641 for (pos
= ies
; end
- pos
> 1; pos
+= len
) {
648 if (id
!= WLAN_EID_VENDOR_SPECIFIC
|| len
< 3)
652 u32 type
= WPA_GET_BE32(pos
);
654 if (type
== WPA_IE_VENDOR_TYPE
||
655 type
== WMM_IE_VENDOR_TYPE
||
656 type
== WPS_IE_VENDOR_TYPE
||
657 type
== P2P_IE_VENDOR_TYPE
||
658 type
== WFD_IE_VENDOR_TYPE
)
662 /* Unknown vendor element - make raw IE data available */
663 if (wpabuf_resize(&dev
->info
.vendor_elems
, 2 + len
) < 0)
665 wpabuf_put_data(dev
->info
.vendor_elems
, pos
- 2, 2 + len
);
670 static int p2p_compare_wfd_info(struct p2p_device
*dev
,
671 const struct p2p_message
*msg
)
673 if (dev
->info
.wfd_subelems
&& msg
->wfd_subelems
) {
674 if (dev
->info
.wfd_subelems
->used
!= msg
->wfd_subelems
->used
)
677 return os_memcmp(dev
->info
.wfd_subelems
->buf
,
678 msg
->wfd_subelems
->buf
,
679 dev
->info
.wfd_subelems
->used
);
681 if (dev
->info
.wfd_subelems
|| msg
->wfd_subelems
)
689 * p2p_add_device - Add peer entries based on scan results or P2P frames
690 * @p2p: P2P module context from p2p_init()
691 * @addr: Source address of Beacon or Probe Response frame (may be either
692 * P2P Device Address or P2P Interface Address)
693 * @level: Signal level (signal strength of the received frame from the peer)
694 * @freq: Frequency on which the Beacon or Probe Response frame was received
695 * @rx_time: Time when the result was received
696 * @ies: IEs from the Beacon or Probe Response frame
697 * @ies_len: Length of ies buffer in octets
698 * @scan_res: Whether this was based on scan results
699 * Returns: 0 on success, -1 on failure
701 * If the scan result is for a GO, the clients in the group will also be added
702 * to the peer table. This function can also be used with some other frames
703 * like Provision Discovery Request that contains P2P Capability and P2P Device
706 int p2p_add_device(struct p2p_data
*p2p
, const u8
*addr
, int freq
,
707 struct os_reltime
*rx_time
, int level
, const u8
*ies
,
708 size_t ies_len
, int scan_res
)
710 struct p2p_device
*dev
;
711 struct p2p_message msg
;
712 const u8
*p2p_dev_addr
;
715 struct os_reltime time_now
;
717 os_memset(&msg
, 0, sizeof(msg
));
718 if (p2p_parse_ies(ies
, ies_len
, &msg
)) {
719 p2p_dbg(p2p
, "Failed to parse P2P IE for a device entry");
720 p2p_parse_free(&msg
);
724 if (msg
.p2p_device_addr
)
725 p2p_dev_addr
= msg
.p2p_device_addr
;
726 else if (msg
.device_id
)
727 p2p_dev_addr
= msg
.device_id
;
729 p2p_dbg(p2p
, "Ignore scan data without P2P Device Info or P2P Device Id");
730 p2p_parse_free(&msg
);
734 if (!is_zero_ether_addr(p2p
->peer_filter
) &&
735 os_memcmp(p2p_dev_addr
, p2p
->peer_filter
, ETH_ALEN
) != 0) {
736 p2p_dbg(p2p
, "Do not add peer filter for " MACSTR
737 " due to peer filter", MAC2STR(p2p_dev_addr
));
738 p2p_parse_free(&msg
);
742 dev
= p2p_create_device(p2p
, p2p_dev_addr
);
744 p2p_parse_free(&msg
);
748 if (rx_time
== NULL
) {
749 os_get_reltime(&time_now
);
754 * Update the device entry only if the new peer
755 * entry is newer than the one previously stored, or if
756 * the device was previously seen as a P2P Client in a group
757 * and the new entry isn't older than a threshold.
759 if (dev
->last_seen
.sec
> 0 &&
760 os_reltime_before(rx_time
, &dev
->last_seen
) &&
761 (!(dev
->flags
& P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT
) ||
762 os_reltime_expired(&dev
->last_seen
, rx_time
,
763 P2P_DEV_GROUP_CLIENT_RESP_THRESHOLD
))) {
765 "Do not update peer entry based on old frame (rx_time=%u.%06u last_seen=%u.%06u flags=0x%x)",
766 (unsigned int) rx_time
->sec
,
767 (unsigned int) rx_time
->usec
,
768 (unsigned int) dev
->last_seen
.sec
,
769 (unsigned int) dev
->last_seen
.usec
,
771 p2p_parse_free(&msg
);
775 os_memcpy(&dev
->last_seen
, rx_time
, sizeof(struct os_reltime
));
777 dev
->flags
&= ~(P2P_DEV_PROBE_REQ_ONLY
| P2P_DEV_GROUP_CLIENT_ONLY
|
778 P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT
);
780 if (os_memcmp(addr
, p2p_dev_addr
, ETH_ALEN
) != 0)
781 os_memcpy(dev
->interface_addr
, addr
, ETH_ALEN
);
783 msg
.ssid
[1] <= sizeof(dev
->oper_ssid
) &&
784 (msg
.ssid
[1] != P2P_WILDCARD_SSID_LEN
||
785 os_memcmp(msg
.ssid
+ 2, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
)
787 os_memcpy(dev
->oper_ssid
, msg
.ssid
+ 2, msg
.ssid
[1]);
788 dev
->oper_ssid_len
= msg
.ssid
[1];
791 if (msg
.adv_service_instance
&& msg
.adv_service_instance_len
) {
792 wpabuf_free(dev
->info
.p2ps_instance
);
793 dev
->info
.p2ps_instance
= wpabuf_alloc_copy(
794 msg
.adv_service_instance
, msg
.adv_service_instance_len
);
797 if (freq
>= 2412 && freq
<= 2484 && msg
.ds_params
&&
798 *msg
.ds_params
>= 1 && *msg
.ds_params
<= 14) {
800 if (*msg
.ds_params
== 14)
803 ds_freq
= 2407 + *msg
.ds_params
* 5;
804 if (freq
!= ds_freq
) {
805 p2p_dbg(p2p
, "Update Listen frequency based on DS Parameter Set IE: %d -> %d MHz",
811 if (dev
->listen_freq
&& dev
->listen_freq
!= freq
&& scan_res
) {
812 p2p_dbg(p2p
, "Update Listen frequency based on scan results ("
813 MACSTR
" %d -> %d MHz (DS param %d)",
814 MAC2STR(dev
->info
.p2p_device_addr
), dev
->listen_freq
,
815 freq
, msg
.ds_params
? *msg
.ds_params
: -1);
818 dev
->listen_freq
= freq
;
820 dev
->oper_freq
= freq
;
822 dev
->info
.level
= level
;
824 p2p_copy_wps_info(p2p
, dev
, 0, &msg
);
826 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
827 wpabuf_free(dev
->info
.wps_vendor_ext
[i
]);
828 dev
->info
.wps_vendor_ext
[i
] = NULL
;
831 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
832 if (msg
.wps_vendor_ext
[i
] == NULL
)
834 dev
->info
.wps_vendor_ext
[i
] = wpabuf_alloc_copy(
835 msg
.wps_vendor_ext
[i
], msg
.wps_vendor_ext_len
[i
]);
836 if (dev
->info
.wps_vendor_ext
[i
] == NULL
)
840 wfd_changed
= p2p_compare_wfd_info(dev
, &msg
);
842 if (msg
.wfd_subelems
) {
843 wpabuf_free(dev
->info
.wfd_subelems
);
844 dev
->info
.wfd_subelems
= wpabuf_dup(msg
.wfd_subelems
);
848 p2p_add_group_clients(p2p
, p2p_dev_addr
, addr
, freq
,
849 msg
.group_info
, msg
.group_info_len
,
853 p2p_parse_free(&msg
);
855 p2p_update_peer_vendor_elems(dev
, ies
, ies_len
);
857 if (dev
->flags
& P2P_DEV_REPORTED
&& !wfd_changed
&&
858 (!msg
.adv_service_instance
||
859 (dev
->flags
& P2P_DEV_P2PS_REPORTED
)))
862 p2p_dbg(p2p
, "Peer found with Listen frequency %d MHz (rx_time=%u.%06u)",
863 freq
, (unsigned int) rx_time
->sec
,
864 (unsigned int) rx_time
->usec
);
865 if (dev
->flags
& P2P_DEV_USER_REJECTED
) {
866 p2p_dbg(p2p
, "Do not report rejected device");
870 if (dev
->info
.config_methods
== 0 &&
871 (freq
== 2412 || freq
== 2437 || freq
== 2462)) {
873 * If we have only seen a Beacon frame from a GO, we do not yet
874 * know what WPS config methods it supports. Since some
875 * applications use config_methods value from P2P-DEVICE-FOUND
876 * events, postpone reporting this peer until we've fully
877 * discovered its capabilities.
879 * At least for now, do this only if the peer was detected on
880 * one of the social channels since that peer can be easily be
881 * found again and there are no limitations of having to use
882 * passive scan on this channels, so this can be done through
883 * Probe Response frame that includes the config_methods
886 p2p_dbg(p2p
, "Do not report peer " MACSTR
887 " with unknown config methods", MAC2STR(addr
));
891 p2p
->cfg
->dev_found(p2p
->cfg
->cb_ctx
, addr
, &dev
->info
,
892 !(dev
->flags
& P2P_DEV_REPORTED_ONCE
));
893 dev
->flags
|= P2P_DEV_REPORTED
| P2P_DEV_REPORTED_ONCE
;
895 if (msg
.adv_service_instance
)
896 dev
->flags
|= P2P_DEV_P2PS_REPORTED
;
902 static void p2p_device_free(struct p2p_data
*p2p
, struct p2p_device
*dev
)
906 if (p2p
->go_neg_peer
== dev
) {
908 * If GO Negotiation is in progress, report that it has failed.
910 p2p_go_neg_failed(p2p
, -1);
912 if (p2p
->invite_peer
== dev
)
913 p2p
->invite_peer
= NULL
;
914 if (p2p
->sd_peer
== dev
)
916 if (p2p
->pending_client_disc_go
== dev
)
917 p2p
->pending_client_disc_go
= NULL
;
919 /* dev_lost() device, but only if it was previously dev_found() */
920 if (dev
->flags
& P2P_DEV_REPORTED_ONCE
)
921 p2p
->cfg
->dev_lost(p2p
->cfg
->cb_ctx
,
922 dev
->info
.p2p_device_addr
);
924 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
925 wpabuf_free(dev
->info
.wps_vendor_ext
[i
]);
926 dev
->info
.wps_vendor_ext
[i
] = NULL
;
929 wpabuf_free(dev
->info
.wfd_subelems
);
930 wpabuf_free(dev
->info
.vendor_elems
);
931 wpabuf_free(dev
->go_neg_conf
);
932 wpabuf_free(dev
->info
.p2ps_instance
);
938 static int p2p_get_next_prog_freq(struct p2p_data
*p2p
)
940 struct p2p_channels
*c
;
941 struct p2p_reg_class
*cla
;
948 c
= &p2p
->cfg
->channels
;
949 for (cl
= 0; cl
< c
->reg_classes
; cl
++) {
950 cla
= &c
->reg_class
[cl
];
951 if (cla
->reg_class
!= p2p
->last_prog_scan_class
)
953 for (ch
= 0; ch
< cla
->channels
; ch
++) {
954 if (cla
->channel
[ch
] == p2p
->last_prog_scan_chan
) {
964 /* Start from beginning */
965 reg_class
= c
->reg_class
[0].reg_class
;
966 channel
= c
->reg_class
[0].channel
[0];
968 /* Pick the next channel */
970 if (ch
== cla
->channels
) {
972 if (cl
== c
->reg_classes
)
976 reg_class
= c
->reg_class
[cl
].reg_class
;
977 channel
= c
->reg_class
[cl
].channel
[ch
];
980 freq
= p2p_channel_to_freq(reg_class
, channel
);
981 p2p_dbg(p2p
, "Next progressive search channel: reg_class %u channel %u -> %d MHz",
982 reg_class
, channel
, freq
);
983 p2p
->last_prog_scan_class
= reg_class
;
984 p2p
->last_prog_scan_chan
= channel
;
986 if (freq
== 2412 || freq
== 2437 || freq
== 2462)
987 return 0; /* No need to add social channels */
992 static void p2p_search(struct p2p_data
*p2p
)
995 enum p2p_scan_type type
;
996 u16 pw_id
= DEV_PW_DEFAULT
;
999 if (p2p
->drv_in_listen
) {
1000 p2p_dbg(p2p
, "Driver is still in Listen state - wait for it to end before continuing");
1003 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
1005 if (p2p
->find_type
== P2P_FIND_PROGRESSIVE
&&
1006 (freq
= p2p_get_next_prog_freq(p2p
)) > 0) {
1007 type
= P2P_SCAN_SOCIAL_PLUS_ONE
;
1008 p2p_dbg(p2p
, "Starting search (+ freq %u)", freq
);
1010 type
= P2P_SCAN_SOCIAL
;
1011 p2p_dbg(p2p
, "Starting search");
1014 res
= p2p
->cfg
->p2p_scan(p2p
->cfg
->cb_ctx
, type
, freq
,
1015 p2p
->num_req_dev_types
, p2p
->req_dev_types
,
1016 p2p
->find_dev_id
, pw_id
);
1018 p2p_dbg(p2p
, "Scan request schedule failed");
1019 p2p_continue_find(p2p
);
1024 static void p2p_find_timeout(void *eloop_ctx
, void *timeout_ctx
)
1026 struct p2p_data
*p2p
= eloop_ctx
;
1027 p2p_dbg(p2p
, "Find timeout -> stop");
1032 void p2p_notify_scan_trigger_status(struct p2p_data
*p2p
, int status
)
1035 p2p_dbg(p2p
, "Scan request failed");
1036 /* Do continue find even for the first p2p_find_scan */
1037 p2p_continue_find(p2p
);
1039 p2p_dbg(p2p
, "Running p2p_scan");
1040 p2p
->p2p_scan_running
= 1;
1041 eloop_cancel_timeout(p2p_scan_timeout
, p2p
, NULL
);
1042 eloop_register_timeout(P2P_SCAN_TIMEOUT
, 0, p2p_scan_timeout
,
1048 static int p2p_run_after_scan(struct p2p_data
*p2p
)
1050 struct p2p_device
*dev
;
1051 enum p2p_after_scan op
;
1053 if (p2p
->after_scan_tx
) {
1054 p2p
->after_scan_tx_in_progress
= 1;
1055 p2p_dbg(p2p
, "Send pending Action frame at p2p_scan completion");
1056 p2p
->cfg
->send_action(p2p
->cfg
->cb_ctx
,
1057 p2p
->after_scan_tx
->freq
,
1058 p2p
->after_scan_tx
->dst
,
1059 p2p
->after_scan_tx
->src
,
1060 p2p
->after_scan_tx
->bssid
,
1061 (u8
*) (p2p
->after_scan_tx
+ 1),
1062 p2p
->after_scan_tx
->len
,
1063 p2p
->after_scan_tx
->wait_time
);
1064 os_free(p2p
->after_scan_tx
);
1065 p2p
->after_scan_tx
= NULL
;
1069 op
= p2p
->start_after_scan
;
1070 p2p
->start_after_scan
= P2P_AFTER_SCAN_NOTHING
;
1072 case P2P_AFTER_SCAN_NOTHING
:
1074 case P2P_AFTER_SCAN_LISTEN
:
1075 p2p_dbg(p2p
, "Start previously requested Listen state");
1076 p2p_listen(p2p
, p2p
->pending_listen_sec
* 1000 +
1077 p2p
->pending_listen_usec
/ 1000);
1079 case P2P_AFTER_SCAN_CONNECT
:
1080 p2p_dbg(p2p
, "Start previously requested connect with " MACSTR
,
1081 MAC2STR(p2p
->after_scan_peer
));
1082 dev
= p2p_get_device(p2p
, p2p
->after_scan_peer
);
1084 p2p_dbg(p2p
, "Peer not known anymore");
1087 p2p_connect_send(p2p
, dev
);
1095 static void p2p_scan_timeout(void *eloop_ctx
, void *timeout_ctx
)
1097 struct p2p_data
*p2p
= eloop_ctx
;
1099 p2p_dbg(p2p
, "p2p_scan timeout (running=%d)", p2p
->p2p_scan_running
);
1100 running
= p2p
->p2p_scan_running
;
1101 /* Make sure we recover from missed scan results callback */
1102 p2p
->p2p_scan_running
= 0;
1105 p2p_run_after_scan(p2p
);
1109 static void p2p_free_req_dev_types(struct p2p_data
*p2p
)
1111 p2p
->num_req_dev_types
= 0;
1112 os_free(p2p
->req_dev_types
);
1113 p2p
->req_dev_types
= NULL
;
1117 static int p2ps_gen_hash(struct p2p_data
*p2p
, const char *str
, u8
*hash
)
1119 u8 buf
[SHA256_MAC_LEN
];
1121 const u8
*adv_array
;
1128 os_memcpy(hash
, p2p
->wild_card_hash
, P2PS_HASH_LEN
);
1132 adv_array
= (u8
*) str_buf
;
1133 adv_len
= os_strlen(str
);
1134 if (adv_len
>= sizeof(str_buf
))
1137 for (i
= 0; i
< adv_len
; i
++) {
1138 if (str
[i
] >= 'A' && str
[i
] <= 'Z')
1139 str_buf
[i
] = str
[i
] - 'A' + 'a';
1141 str_buf
[i
] = str
[i
];
1144 if (sha256_vector(1, &adv_array
, &adv_len
, buf
))
1147 os_memcpy(hash
, buf
, P2PS_HASH_LEN
);
1152 int p2p_find(struct p2p_data
*p2p
, unsigned int timeout
,
1153 enum p2p_discovery_type type
,
1154 unsigned int num_req_dev_types
, const u8
*req_dev_types
,
1155 const u8
*dev_id
, unsigned int search_delay
,
1156 u8 seek_count
, const char **seek
, int freq
)
1160 p2p_dbg(p2p
, "Starting find (type=%d)", type
);
1161 os_get_reltime(&p2p
->find_start
);
1162 if (p2p
->p2p_scan_running
) {
1163 p2p_dbg(p2p
, "p2p_scan is already running");
1166 p2p_free_req_dev_types(p2p
);
1167 if (req_dev_types
&& num_req_dev_types
) {
1168 p2p
->req_dev_types
= os_malloc(num_req_dev_types
*
1170 if (p2p
->req_dev_types
== NULL
)
1172 os_memcpy(p2p
->req_dev_types
, req_dev_types
,
1173 num_req_dev_types
* WPS_DEV_TYPE_LEN
);
1174 p2p
->num_req_dev_types
= num_req_dev_types
;
1178 os_memcpy(p2p
->find_dev_id_buf
, dev_id
, ETH_ALEN
);
1179 p2p
->find_dev_id
= p2p
->find_dev_id_buf
;
1181 p2p
->find_dev_id
= NULL
;
1183 if (seek_count
== 0 || !seek
) {
1184 /* Not an ASP search */
1186 } else if (seek_count
== 1 && seek
&& (!seek
[0] || !seek
[0][0])) {
1188 * An empty seek string means no hash values, but still an ASP
1191 p2p_dbg(p2p
, "ASP search");
1192 p2p
->p2ps_seek_count
= 0;
1194 } else if (seek
&& seek_count
<= P2P_MAX_QUERY_HASH
) {
1195 u8 buf
[P2PS_HASH_LEN
];
1198 for (i
= 0; i
< seek_count
; i
++) {
1199 if (!p2ps_gen_hash(p2p
, seek
[i
], buf
))
1202 p2p_dbg(p2p
, "Seek service %s hash " MACSTR
,
1203 seek
[i
], MAC2STR(buf
));
1204 os_memcpy(&p2p
->p2ps_seek_hash
[count
* P2PS_HASH_LEN
],
1205 buf
, P2PS_HASH_LEN
);
1209 p2p
->p2ps_seek_count
= count
;
1212 p2p
->p2ps_seek_count
= 0;
1216 /* Special case to perform wildcard search */
1217 if (p2p
->p2ps_seek_count
== 0 && p2p
->p2ps_seek
) {
1218 p2p
->p2ps_seek_count
= 1;
1219 os_memcpy(&p2p
->p2ps_seek_hash
, p2p
->wild_card_hash
,
1223 p2p
->start_after_scan
= P2P_AFTER_SCAN_NOTHING
;
1224 p2p_clear_timeout(p2p
);
1225 if (p2p
->pending_listen_freq
) {
1226 p2p_dbg(p2p
, "Clear pending_listen_freq for p2p_find");
1227 p2p
->pending_listen_freq
= 0;
1229 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
1230 p2p
->find_type
= type
;
1231 p2p_device_clear_reported(p2p
);
1232 os_memset(p2p
->sd_query_no_ack
, 0, ETH_ALEN
);
1233 p2p_set_state(p2p
, P2P_SEARCH
);
1234 p2p
->search_delay
= search_delay
;
1235 p2p
->in_search_delay
= 0;
1236 eloop_cancel_timeout(p2p_find_timeout
, p2p
, NULL
);
1237 p2p
->last_p2p_find_timeout
= timeout
;
1239 eloop_register_timeout(timeout
, 0, p2p_find_timeout
,
1242 case P2P_FIND_START_WITH_FULL
:
1245 * Start with the specified channel and then move to
1246 * social channels only scans.
1248 res
= p2p
->cfg
->p2p_scan(p2p
->cfg
->cb_ctx
,
1249 P2P_SCAN_SPECIFIC
, freq
,
1250 p2p
->num_req_dev_types
,
1251 p2p
->req_dev_types
, dev_id
,
1256 case P2P_FIND_PROGRESSIVE
:
1257 res
= p2p
->cfg
->p2p_scan(p2p
->cfg
->cb_ctx
, P2P_SCAN_FULL
, 0,
1258 p2p
->num_req_dev_types
,
1259 p2p
->req_dev_types
, dev_id
,
1262 case P2P_FIND_ONLY_SOCIAL
:
1263 res
= p2p
->cfg
->p2p_scan(p2p
->cfg
->cb_ctx
, P2P_SCAN_SOCIAL
, 0,
1264 p2p
->num_req_dev_types
,
1265 p2p
->req_dev_types
, dev_id
,
1272 if (res
!= 0 && p2p
->p2p_scan_running
) {
1273 p2p_dbg(p2p
, "Failed to start p2p_scan - another p2p_scan was already running");
1274 /* wait for the previous p2p_scan to complete */
1275 res
= 0; /* do not report failure */
1276 } else if (res
!= 0) {
1277 p2p_dbg(p2p
, "Failed to start p2p_scan");
1278 p2p_set_state(p2p
, P2P_IDLE
);
1279 eloop_cancel_timeout(p2p_find_timeout
, p2p
, NULL
);
1286 void p2p_stop_find_for_freq(struct p2p_data
*p2p
, int freq
)
1288 p2p_dbg(p2p
, "Stopping find");
1289 eloop_cancel_timeout(p2p_find_timeout
, p2p
, NULL
);
1290 p2p_clear_timeout(p2p
);
1291 if (p2p
->state
== P2P_SEARCH
|| p2p
->state
== P2P_SD_DURING_FIND
)
1292 p2p
->cfg
->find_stopped(p2p
->cfg
->cb_ctx
);
1294 p2p
->p2ps_seek_count
= 0;
1296 p2p_set_state(p2p
, P2P_IDLE
);
1297 p2p_free_req_dev_types(p2p
);
1298 p2p
->start_after_scan
= P2P_AFTER_SCAN_NOTHING
;
1299 if (p2p
->go_neg_peer
)
1300 p2p
->go_neg_peer
->flags
&= ~P2P_DEV_PEER_WAITING_RESPONSE
;
1301 p2p
->go_neg_peer
= NULL
;
1302 p2p
->sd_peer
= NULL
;
1303 p2p
->invite_peer
= NULL
;
1304 p2p_stop_listen_for_freq(p2p
, freq
);
1305 p2p
->send_action_in_progress
= 0;
1309 void p2p_stop_listen_for_freq(struct p2p_data
*p2p
, int freq
)
1311 if (freq
> 0 && p2p
->drv_in_listen
== freq
&& p2p
->in_listen
) {
1312 p2p_dbg(p2p
, "Skip stop_listen since we are on correct channel for response");
1315 if (p2p
->in_listen
) {
1317 p2p_clear_timeout(p2p
);
1319 if (p2p
->drv_in_listen
) {
1321 * The driver may not deliver callback to p2p_listen_end()
1322 * when the operation gets canceled, so clear the internal
1323 * variable that is tracking driver state.
1325 p2p_dbg(p2p
, "Clear drv_in_listen (%d)", p2p
->drv_in_listen
);
1326 p2p
->drv_in_listen
= 0;
1328 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
1332 void p2p_stop_listen(struct p2p_data
*p2p
)
1334 if (p2p
->state
!= P2P_LISTEN_ONLY
) {
1335 p2p_dbg(p2p
, "Skip stop_listen since not in listen_only state.");
1339 p2p_stop_listen_for_freq(p2p
, 0);
1340 p2p_set_state(p2p
, P2P_IDLE
);
1344 void p2p_stop_find(struct p2p_data
*p2p
)
1346 p2p
->pending_listen_freq
= 0;
1347 p2p_stop_find_for_freq(p2p
, 0);
1351 static int p2p_prepare_channel_pref(struct p2p_data
*p2p
,
1352 unsigned int force_freq
,
1353 unsigned int pref_freq
, int go
)
1355 u8 op_class
, op_channel
;
1356 unsigned int freq
= force_freq
? force_freq
: pref_freq
;
1358 p2p_dbg(p2p
, "Prepare channel pref - force_freq=%u pref_freq=%u go=%d",
1359 force_freq
, pref_freq
, go
);
1360 if (p2p_freq_to_channel(freq
, &op_class
, &op_channel
) < 0) {
1361 p2p_dbg(p2p
, "Unsupported frequency %u MHz", freq
);
1365 if (!p2p_channels_includes(&p2p
->cfg
->channels
, op_class
, op_channel
) &&
1366 (go
|| !p2p_channels_includes(&p2p
->cfg
->cli_channels
, op_class
,
1368 p2p_dbg(p2p
, "Frequency %u MHz (oper_class %u channel %u) not allowed for P2P",
1369 freq
, op_class
, op_channel
);
1373 p2p
->op_reg_class
= op_class
;
1374 p2p
->op_channel
= op_channel
;
1377 p2p
->channels
.reg_classes
= 1;
1378 p2p
->channels
.reg_class
[0].channels
= 1;
1379 p2p
->channels
.reg_class
[0].reg_class
= p2p
->op_reg_class
;
1380 p2p
->channels
.reg_class
[0].channel
[0] = p2p
->op_channel
;
1382 os_memcpy(&p2p
->channels
, &p2p
->cfg
->channels
,
1383 sizeof(struct p2p_channels
));
1390 static void p2p_prepare_channel_best(struct p2p_data
*p2p
)
1392 u8 op_class
, op_channel
;
1393 const int op_classes_5ghz
[] = { 124, 125, 115, 0 };
1394 const int op_classes_ht40
[] = { 126, 127, 116, 117, 0 };
1395 const int op_classes_vht
[] = { 128, 0 };
1397 p2p_dbg(p2p
, "Prepare channel best");
1399 if (!p2p
->cfg
->cfg_op_channel
&& p2p
->best_freq_overall
> 0 &&
1400 p2p_supported_freq(p2p
, p2p
->best_freq_overall
) &&
1401 p2p_freq_to_channel(p2p
->best_freq_overall
, &op_class
, &op_channel
)
1403 p2p_dbg(p2p
, "Select best overall channel as operating channel preference");
1404 p2p
->op_reg_class
= op_class
;
1405 p2p
->op_channel
= op_channel
;
1406 } else if (!p2p
->cfg
->cfg_op_channel
&& p2p
->best_freq_5
> 0 &&
1407 p2p_supported_freq(p2p
, p2p
->best_freq_5
) &&
1408 p2p_freq_to_channel(p2p
->best_freq_5
, &op_class
, &op_channel
)
1410 p2p_dbg(p2p
, "Select best 5 GHz channel as operating channel preference");
1411 p2p
->op_reg_class
= op_class
;
1412 p2p
->op_channel
= op_channel
;
1413 } else if (!p2p
->cfg
->cfg_op_channel
&& p2p
->best_freq_24
> 0 &&
1414 p2p_supported_freq(p2p
, p2p
->best_freq_24
) &&
1415 p2p_freq_to_channel(p2p
->best_freq_24
, &op_class
,
1416 &op_channel
) == 0) {
1417 p2p_dbg(p2p
, "Select best 2.4 GHz channel as operating channel preference");
1418 p2p
->op_reg_class
= op_class
;
1419 p2p
->op_channel
= op_channel
;
1420 } else if (p2p
->cfg
->num_pref_chan
> 0 &&
1421 p2p_channels_includes(&p2p
->cfg
->channels
,
1422 p2p
->cfg
->pref_chan
[0].op_class
,
1423 p2p
->cfg
->pref_chan
[0].chan
)) {
1424 p2p_dbg(p2p
, "Select first pref_chan entry as operating channel preference");
1425 p2p
->op_reg_class
= p2p
->cfg
->pref_chan
[0].op_class
;
1426 p2p
->op_channel
= p2p
->cfg
->pref_chan
[0].chan
;
1427 } else if (p2p_channel_select(&p2p
->cfg
->channels
, op_classes_vht
,
1428 &p2p
->op_reg_class
, &p2p
->op_channel
) ==
1430 p2p_dbg(p2p
, "Select possible VHT channel (op_class %u channel %u) as operating channel preference",
1431 p2p
->op_reg_class
, p2p
->op_channel
);
1432 } else if (p2p_channel_select(&p2p
->cfg
->channels
, op_classes_ht40
,
1433 &p2p
->op_reg_class
, &p2p
->op_channel
) ==
1435 p2p_dbg(p2p
, "Select possible HT40 channel (op_class %u channel %u) as operating channel preference",
1436 p2p
->op_reg_class
, p2p
->op_channel
);
1437 } else if (p2p_channel_select(&p2p
->cfg
->channels
, op_classes_5ghz
,
1438 &p2p
->op_reg_class
, &p2p
->op_channel
) ==
1440 p2p_dbg(p2p
, "Select possible 5 GHz channel (op_class %u channel %u) as operating channel preference",
1441 p2p
->op_reg_class
, p2p
->op_channel
);
1442 } else if (p2p_channels_includes(&p2p
->cfg
->channels
,
1443 p2p
->cfg
->op_reg_class
,
1444 p2p
->cfg
->op_channel
)) {
1445 p2p_dbg(p2p
, "Select pre-configured channel as operating channel preference");
1446 p2p
->op_reg_class
= p2p
->cfg
->op_reg_class
;
1447 p2p
->op_channel
= p2p
->cfg
->op_channel
;
1448 } else if (p2p_channel_random_social(&p2p
->cfg
->channels
,
1450 &p2p
->op_channel
) == 0) {
1451 p2p_dbg(p2p
, "Select random available social channel (op_class %u channel %u) as operating channel preference",
1452 p2p
->op_reg_class
, p2p
->op_channel
);
1454 /* Select any random available channel from the first available
1455 * operating class */
1456 p2p_channel_select(&p2p
->cfg
->channels
, NULL
,
1459 p2p_dbg(p2p
, "Select random available channel %d from operating class %d as operating channel preference",
1460 p2p
->op_channel
, p2p
->op_reg_class
);
1463 os_memcpy(&p2p
->channels
, &p2p
->cfg
->channels
,
1464 sizeof(struct p2p_channels
));
1469 * p2p_prepare_channel - Select operating channel for GO Negotiation or P2PS PD
1470 * @p2p: P2P module context from p2p_init()
1471 * @dev: Selected peer device
1472 * @force_freq: Forced frequency in MHz or 0 if not forced
1473 * @pref_freq: Preferred frequency in MHz or 0 if no preference
1474 * @go: Whether the local end will be forced to be GO
1475 * Returns: 0 on success, -1 on failure (channel not supported for P2P)
1477 * This function is used to do initial operating channel selection for GO
1478 * Negotiation prior to having received peer information or for P2PS PD
1479 * signalling. The selected channel may be further optimized in
1480 * p2p_reselect_channel() once the peer information is available.
1482 int p2p_prepare_channel(struct p2p_data
*p2p
, struct p2p_device
*dev
,
1483 unsigned int force_freq
, unsigned int pref_freq
, int go
)
1485 p2p_dbg(p2p
, "Prepare channel - force_freq=%u pref_freq=%u go=%d",
1486 force_freq
, pref_freq
, go
);
1487 if (force_freq
|| pref_freq
) {
1488 if (p2p_prepare_channel_pref(p2p
, force_freq
, pref_freq
, go
) <
1492 p2p_prepare_channel_best(p2p
);
1494 p2p_channels_dump(p2p
, "prepared channels", &p2p
->channels
);
1496 p2p_channels_remove_freqs(&p2p
->channels
, &p2p
->no_go_freq
);
1497 else if (!force_freq
)
1498 p2p_channels_union_inplace(&p2p
->channels
,
1499 &p2p
->cfg
->cli_channels
);
1500 p2p_channels_dump(p2p
, "after go/cli filter/add", &p2p
->channels
);
1502 p2p_dbg(p2p
, "Own preference for operation channel: Operating Class %u Channel %u%s",
1503 p2p
->op_reg_class
, p2p
->op_channel
,
1504 force_freq
? " (forced)" : "");
1507 dev
->flags
|= P2P_DEV_FORCE_FREQ
;
1509 dev
->flags
&= ~P2P_DEV_FORCE_FREQ
;
1515 static void p2p_set_dev_persistent(struct p2p_device
*dev
,
1516 int persistent_group
)
1518 switch (persistent_group
) {
1520 dev
->flags
&= ~(P2P_DEV_PREFER_PERSISTENT_GROUP
|
1521 P2P_DEV_PREFER_PERSISTENT_RECONN
);
1524 dev
->flags
|= P2P_DEV_PREFER_PERSISTENT_GROUP
;
1525 dev
->flags
&= ~P2P_DEV_PREFER_PERSISTENT_RECONN
;
1528 dev
->flags
|= P2P_DEV_PREFER_PERSISTENT_GROUP
|
1529 P2P_DEV_PREFER_PERSISTENT_RECONN
;
1535 int p2p_connect(struct p2p_data
*p2p
, const u8
*peer_addr
,
1536 enum p2p_wps_method wps_method
,
1537 int go_intent
, const u8
*own_interface_addr
,
1538 unsigned int force_freq
, int persistent_group
,
1539 const u8
*force_ssid
, size_t force_ssid_len
,
1540 int pd_before_go_neg
, unsigned int pref_freq
, u16 oob_pw_id
)
1542 struct p2p_device
*dev
;
1544 p2p_dbg(p2p
, "Request to start group negotiation - peer=" MACSTR
1545 " GO Intent=%d Intended Interface Address=" MACSTR
1546 " wps_method=%d persistent_group=%d pd_before_go_neg=%d "
1548 MAC2STR(peer_addr
), go_intent
, MAC2STR(own_interface_addr
),
1549 wps_method
, persistent_group
, pd_before_go_neg
, oob_pw_id
);
1551 dev
= p2p_get_device(p2p
, peer_addr
);
1552 if (dev
== NULL
|| (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
)) {
1553 p2p_dbg(p2p
, "Cannot connect to unknown P2P Device " MACSTR
,
1554 MAC2STR(peer_addr
));
1558 if (p2p_prepare_channel(p2p
, dev
, force_freq
, pref_freq
,
1559 go_intent
== 15) < 0)
1562 if (dev
->flags
& P2P_DEV_GROUP_CLIENT_ONLY
) {
1563 if (!(dev
->info
.dev_capab
&
1564 P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
)) {
1565 p2p_dbg(p2p
, "Cannot connect to P2P Device " MACSTR
1566 " that is in a group and is not discoverable",
1567 MAC2STR(peer_addr
));
1570 if (dev
->oper_freq
<= 0) {
1571 p2p_dbg(p2p
, "Cannot connect to P2P Device " MACSTR
1572 " with incomplete information",
1573 MAC2STR(peer_addr
));
1578 * First, try to connect directly. If the peer does not
1579 * acknowledge frames, assume it is sleeping and use device
1580 * discoverability via the GO at that point.
1586 wpa_hexdump_ascii(MSG_DEBUG
, "P2P: Forced SSID",
1587 force_ssid
, force_ssid_len
);
1588 os_memcpy(p2p
->ssid
, force_ssid
, force_ssid_len
);
1589 p2p
->ssid_len
= force_ssid_len
;
1593 dev
->flags
&= ~P2P_DEV_NOT_YET_READY
;
1594 dev
->flags
&= ~P2P_DEV_USER_REJECTED
;
1595 dev
->flags
&= ~P2P_DEV_WAIT_GO_NEG_RESPONSE
;
1596 dev
->flags
&= ~P2P_DEV_WAIT_GO_NEG_CONFIRM
;
1597 if (pd_before_go_neg
)
1598 dev
->flags
|= P2P_DEV_PD_BEFORE_GO_NEG
;
1600 dev
->flags
&= ~P2P_DEV_PD_BEFORE_GO_NEG
;
1602 * Assign dialog token and tie breaker here to use the same
1603 * values in each retry within the same GO Negotiation exchange.
1605 dev
->dialog_token
++;
1606 if (dev
->dialog_token
== 0)
1607 dev
->dialog_token
= 1;
1608 dev
->tie_breaker
= p2p
->next_tie_breaker
;
1609 p2p
->next_tie_breaker
= !p2p
->next_tie_breaker
;
1611 dev
->connect_reqs
= 0;
1612 dev
->go_neg_req_sent
= 0;
1613 dev
->go_state
= UNKNOWN_GO
;
1614 p2p_set_dev_persistent(dev
, persistent_group
);
1615 p2p
->go_intent
= go_intent
;
1616 os_memcpy(p2p
->intended_addr
, own_interface_addr
, ETH_ALEN
);
1618 if (p2p
->state
!= P2P_IDLE
)
1621 if (p2p
->after_scan_tx
) {
1623 * We need to drop the pending frame to avoid issues with the
1624 * new GO Negotiation, e.g., when the pending frame was from a
1625 * previous attempt at starting a GO Negotiation.
1627 p2p_dbg(p2p
, "Dropped previous pending Action frame TX that was waiting for p2p_scan completion");
1628 os_free(p2p
->after_scan_tx
);
1629 p2p
->after_scan_tx
= NULL
;
1632 dev
->wps_method
= wps_method
;
1633 dev
->oob_pw_id
= oob_pw_id
;
1634 dev
->status
= P2P_SC_SUCCESS
;
1636 if (p2p
->p2p_scan_running
) {
1637 p2p_dbg(p2p
, "p2p_scan running - delay connect send");
1638 p2p
->start_after_scan
= P2P_AFTER_SCAN_CONNECT
;
1639 os_memcpy(p2p
->after_scan_peer
, peer_addr
, ETH_ALEN
);
1642 p2p
->start_after_scan
= P2P_AFTER_SCAN_NOTHING
;
1644 return p2p_connect_send(p2p
, dev
);
1648 int p2p_authorize(struct p2p_data
*p2p
, const u8
*peer_addr
,
1649 enum p2p_wps_method wps_method
,
1650 int go_intent
, const u8
*own_interface_addr
,
1651 unsigned int force_freq
, int persistent_group
,
1652 const u8
*force_ssid
, size_t force_ssid_len
,
1653 unsigned int pref_freq
, u16 oob_pw_id
)
1655 struct p2p_device
*dev
;
1657 p2p_dbg(p2p
, "Request to authorize group negotiation - peer=" MACSTR
1658 " GO Intent=%d Intended Interface Address=" MACSTR
1659 " wps_method=%d persistent_group=%d oob_pw_id=%u",
1660 MAC2STR(peer_addr
), go_intent
, MAC2STR(own_interface_addr
),
1661 wps_method
, persistent_group
, oob_pw_id
);
1663 dev
= p2p_get_device(p2p
, peer_addr
);
1665 p2p_dbg(p2p
, "Cannot authorize unknown P2P Device " MACSTR
,
1666 MAC2STR(peer_addr
));
1670 if (p2p_prepare_channel(p2p
, dev
, force_freq
, pref_freq
, go_intent
==
1676 wpa_hexdump_ascii(MSG_DEBUG
, "P2P: Forced SSID",
1677 force_ssid
, force_ssid_len
);
1678 os_memcpy(p2p
->ssid
, force_ssid
, force_ssid_len
);
1679 p2p
->ssid_len
= force_ssid_len
;
1683 dev
->flags
&= ~P2P_DEV_NOT_YET_READY
;
1684 dev
->flags
&= ~P2P_DEV_USER_REJECTED
;
1685 dev
->go_neg_req_sent
= 0;
1686 dev
->go_state
= UNKNOWN_GO
;
1687 p2p_set_dev_persistent(dev
, persistent_group
);
1688 p2p
->go_intent
= go_intent
;
1689 os_memcpy(p2p
->intended_addr
, own_interface_addr
, ETH_ALEN
);
1691 dev
->wps_method
= wps_method
;
1692 dev
->oob_pw_id
= oob_pw_id
;
1693 dev
->status
= P2P_SC_SUCCESS
;
1699 void p2p_add_dev_info(struct p2p_data
*p2p
, const u8
*addr
,
1700 struct p2p_device
*dev
, struct p2p_message
*msg
)
1702 os_get_reltime(&dev
->last_seen
);
1704 p2p_copy_wps_info(p2p
, dev
, 0, msg
);
1706 if (msg
->listen_channel
) {
1708 freq
= p2p_channel_to_freq(msg
->listen_channel
[3],
1709 msg
->listen_channel
[4]);
1711 p2p_dbg(p2p
, "Unknown peer Listen channel: "
1712 "country=%c%c(0x%02x) reg_class=%u channel=%u",
1713 msg
->listen_channel
[0],
1714 msg
->listen_channel
[1],
1715 msg
->listen_channel
[2],
1716 msg
->listen_channel
[3],
1717 msg
->listen_channel
[4]);
1719 p2p_dbg(p2p
, "Update peer " MACSTR
1720 " Listen channel: %u -> %u MHz",
1721 MAC2STR(dev
->info
.p2p_device_addr
),
1722 dev
->listen_freq
, freq
);
1723 dev
->listen_freq
= freq
;
1727 if (msg
->wfd_subelems
) {
1728 wpabuf_free(dev
->info
.wfd_subelems
);
1729 dev
->info
.wfd_subelems
= wpabuf_dup(msg
->wfd_subelems
);
1732 if (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
) {
1733 dev
->flags
&= ~P2P_DEV_PROBE_REQ_ONLY
;
1734 p2p_dbg(p2p
, "Completed device entry based on data from GO Negotiation Request");
1736 p2p_dbg(p2p
, "Created device entry based on GO Neg Req: "
1737 MACSTR
" dev_capab=0x%x group_capab=0x%x name='%s' "
1739 MAC2STR(dev
->info
.p2p_device_addr
),
1740 dev
->info
.dev_capab
, dev
->info
.group_capab
,
1741 dev
->info
.device_name
, dev
->listen_freq
);
1744 dev
->flags
&= ~P2P_DEV_GROUP_CLIENT_ONLY
;
1746 if (dev
->flags
& P2P_DEV_USER_REJECTED
) {
1747 p2p_dbg(p2p
, "Do not report rejected device");
1751 p2p
->cfg
->dev_found(p2p
->cfg
->cb_ctx
, addr
, &dev
->info
,
1752 !(dev
->flags
& P2P_DEV_REPORTED_ONCE
));
1753 dev
->flags
|= P2P_DEV_REPORTED
| P2P_DEV_REPORTED_ONCE
;
1757 void p2p_build_ssid(struct p2p_data
*p2p
, u8
*ssid
, size_t *ssid_len
)
1759 os_memcpy(ssid
, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
);
1760 p2p_random((char *) &ssid
[P2P_WILDCARD_SSID_LEN
], 2);
1761 os_memcpy(&ssid
[P2P_WILDCARD_SSID_LEN
+ 2],
1762 p2p
->cfg
->ssid_postfix
, p2p
->cfg
->ssid_postfix_len
);
1763 *ssid_len
= P2P_WILDCARD_SSID_LEN
+ 2 + p2p
->cfg
->ssid_postfix_len
;
1767 int p2p_go_params(struct p2p_data
*p2p
, struct p2p_go_neg_results
*params
)
1769 if (p2p
->ssid_set
) {
1770 os_memcpy(params
->ssid
, p2p
->ssid
, p2p
->ssid_len
);
1771 params
->ssid_len
= p2p
->ssid_len
;
1773 p2p_build_ssid(p2p
, params
->ssid
, ¶ms
->ssid_len
);
1777 p2p_random(params
->passphrase
, p2p
->cfg
->passphrase_len
);
1782 void p2p_go_complete(struct p2p_data
*p2p
, struct p2p_device
*peer
)
1784 struct p2p_go_neg_results res
;
1785 int go
= peer
->go_state
== LOCAL_GO
;
1786 struct p2p_channels intersection
;
1788 p2p_dbg(p2p
, "GO Negotiation with " MACSTR
" completed (%s will be GO)",
1789 MAC2STR(peer
->info
.p2p_device_addr
), go
? "local end" : "peer");
1791 os_memset(&res
, 0, sizeof(res
));
1793 os_memcpy(res
.peer_device_addr
, peer
->info
.p2p_device_addr
, ETH_ALEN
);
1794 os_memcpy(res
.peer_interface_addr
, peer
->intended_addr
, ETH_ALEN
);
1795 res
.wps_method
= peer
->wps_method
;
1796 if (peer
->flags
& P2P_DEV_PREFER_PERSISTENT_GROUP
) {
1797 if (peer
->flags
& P2P_DEV_PREFER_PERSISTENT_RECONN
)
1798 res
.persistent_group
= 2;
1800 res
.persistent_group
= 1;
1804 /* Setup AP mode for WPS provisioning */
1805 res
.freq
= p2p_channel_to_freq(p2p
->op_reg_class
,
1807 os_memcpy(res
.ssid
, p2p
->ssid
, p2p
->ssid_len
);
1808 res
.ssid_len
= p2p
->ssid_len
;
1809 p2p_random(res
.passphrase
, p2p
->cfg
->passphrase_len
);
1811 res
.freq
= peer
->oper_freq
;
1812 if (p2p
->ssid_len
) {
1813 os_memcpy(res
.ssid
, p2p
->ssid
, p2p
->ssid_len
);
1814 res
.ssid_len
= p2p
->ssid_len
;
1818 p2p_channels_dump(p2p
, "own channels", &p2p
->channels
);
1819 p2p_channels_dump(p2p
, "peer channels", &peer
->channels
);
1820 p2p_channels_intersect(&p2p
->channels
, &peer
->channels
,
1823 p2p_channels_remove_freqs(&intersection
, &p2p
->no_go_freq
);
1824 p2p_channels_dump(p2p
, "intersection after no-GO removal",
1828 p2p_channels_to_freqs(&intersection
, res
.freq_list
,
1831 res
.peer_config_timeout
= go
? peer
->client_timeout
: peer
->go_timeout
;
1833 p2p_clear_timeout(p2p
);
1835 peer
->go_neg_req_sent
= 0;
1836 peer
->wps_method
= WPS_NOT_READY
;
1837 peer
->oob_pw_id
= 0;
1838 wpabuf_free(peer
->go_neg_conf
);
1839 peer
->go_neg_conf
= NULL
;
1841 p2p_set_state(p2p
, P2P_PROVISIONING
);
1842 p2p
->cfg
->go_neg_completed(p2p
->cfg
->cb_ctx
, &res
);
1846 static void p2p_rx_p2p_action(struct p2p_data
*p2p
, const u8
*sa
,
1847 const u8
*data
, size_t len
, int rx_freq
)
1849 p2p_dbg(p2p
, "RX P2P Public Action from " MACSTR
, MAC2STR(sa
));
1850 wpa_hexdump(MSG_MSGDUMP
, "P2P: P2P Public Action contents", data
, len
);
1856 case P2P_GO_NEG_REQ
:
1857 p2p_process_go_neg_req(p2p
, sa
, data
+ 1, len
- 1, rx_freq
);
1859 case P2P_GO_NEG_RESP
:
1860 p2p_process_go_neg_resp(p2p
, sa
, data
+ 1, len
- 1, rx_freq
);
1862 case P2P_GO_NEG_CONF
:
1863 p2p_process_go_neg_conf(p2p
, sa
, data
+ 1, len
- 1);
1865 case P2P_INVITATION_REQ
:
1866 p2p_process_invitation_req(p2p
, sa
, data
+ 1, len
- 1,
1869 case P2P_INVITATION_RESP
:
1870 p2p_process_invitation_resp(p2p
, sa
, data
+ 1, len
- 1);
1872 case P2P_PROV_DISC_REQ
:
1873 p2p_process_prov_disc_req(p2p
, sa
, data
+ 1, len
- 1, rx_freq
);
1875 case P2P_PROV_DISC_RESP
:
1876 p2p_process_prov_disc_resp(p2p
, sa
, data
+ 1, len
- 1);
1878 case P2P_DEV_DISC_REQ
:
1879 p2p_process_dev_disc_req(p2p
, sa
, data
+ 1, len
- 1, rx_freq
);
1881 case P2P_DEV_DISC_RESP
:
1882 p2p_process_dev_disc_resp(p2p
, sa
, data
+ 1, len
- 1);
1885 p2p_dbg(p2p
, "Unsupported P2P Public Action frame type %d",
1892 static void p2p_rx_action_public(struct p2p_data
*p2p
, const u8
*da
,
1893 const u8
*sa
, const u8
*bssid
, const u8
*data
,
1894 size_t len
, int freq
)
1900 case WLAN_PA_VENDOR_SPECIFIC
:
1905 if (WPA_GET_BE32(data
) != P2P_IE_VENDOR_TYPE
)
1911 p2p_rx_p2p_action(p2p
, sa
, data
, len
, freq
);
1913 case WLAN_PA_GAS_INITIAL_REQ
:
1914 p2p_rx_gas_initial_req(p2p
, sa
, data
+ 1, len
- 1, freq
);
1916 case WLAN_PA_GAS_INITIAL_RESP
:
1917 p2p_rx_gas_initial_resp(p2p
, sa
, data
+ 1, len
- 1, freq
);
1919 case WLAN_PA_GAS_COMEBACK_REQ
:
1920 p2p_rx_gas_comeback_req(p2p
, sa
, data
+ 1, len
- 1, freq
);
1922 case WLAN_PA_GAS_COMEBACK_RESP
:
1923 p2p_rx_gas_comeback_resp(p2p
, sa
, data
+ 1, len
- 1, freq
);
1929 void p2p_rx_action(struct p2p_data
*p2p
, const u8
*da
, const u8
*sa
,
1930 const u8
*bssid
, u8 category
,
1931 const u8
*data
, size_t len
, int freq
)
1933 if (category
== WLAN_ACTION_PUBLIC
) {
1934 p2p_rx_action_public(p2p
, da
, sa
, bssid
, data
, len
, freq
);
1938 if (category
!= WLAN_ACTION_VENDOR_SPECIFIC
)
1944 if (WPA_GET_BE32(data
) != P2P_IE_VENDOR_TYPE
)
1949 /* P2P action frame */
1950 p2p_dbg(p2p
, "RX P2P Action from " MACSTR
, MAC2STR(sa
));
1951 wpa_hexdump(MSG_MSGDUMP
, "P2P: P2P Action contents", data
, len
);
1957 p2p_dbg(p2p
, "Received P2P Action - Notice of Absence");
1960 case P2P_PRESENCE_REQ
:
1961 p2p_process_presence_req(p2p
, da
, sa
, data
+ 1, len
- 1, freq
);
1963 case P2P_PRESENCE_RESP
:
1964 p2p_process_presence_resp(p2p
, da
, sa
, data
+ 1, len
- 1);
1966 case P2P_GO_DISC_REQ
:
1967 p2p_process_go_disc_req(p2p
, da
, sa
, data
+ 1, len
- 1, freq
);
1970 p2p_dbg(p2p
, "Received P2P Action - unknown type %u", data
[0]);
1976 static void p2p_go_neg_start(void *eloop_ctx
, void *timeout_ctx
)
1978 struct p2p_data
*p2p
= eloop_ctx
;
1979 if (p2p
->go_neg_peer
== NULL
)
1981 if (p2p
->pending_listen_freq
) {
1982 p2p_dbg(p2p
, "Clear pending_listen_freq for p2p_go_neg_start");
1983 p2p
->pending_listen_freq
= 0;
1985 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
1986 p2p
->go_neg_peer
->status
= P2P_SC_SUCCESS
;
1988 * Set new timeout to make sure a previously set one does not expire
1989 * too quickly while waiting for the GO Negotiation to complete.
1991 p2p_set_timeout(p2p
, 0, 500000);
1992 p2p_connect_send(p2p
, p2p
->go_neg_peer
);
1996 static void p2p_invite_start(void *eloop_ctx
, void *timeout_ctx
)
1998 struct p2p_data
*p2p
= eloop_ctx
;
1999 if (p2p
->invite_peer
== NULL
)
2001 if (p2p
->pending_listen_freq
) {
2002 p2p_dbg(p2p
, "Clear pending_listen_freq for p2p_invite_start");
2003 p2p
->pending_listen_freq
= 0;
2005 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
2006 p2p_invite_send(p2p
, p2p
->invite_peer
, p2p
->invite_go_dev_addr
,
2007 p2p
->invite_dev_pw_id
);
2011 static void p2p_add_dev_from_probe_req(struct p2p_data
*p2p
, const u8
*addr
,
2012 const u8
*ie
, size_t ie_len
)
2014 struct p2p_message msg
;
2015 struct p2p_device
*dev
;
2017 os_memset(&msg
, 0, sizeof(msg
));
2018 if (p2p_parse_ies(ie
, ie_len
, &msg
) < 0 || msg
.p2p_attributes
== NULL
)
2020 p2p_parse_free(&msg
);
2021 return; /* not a P2P probe */
2024 if (msg
.ssid
== NULL
|| msg
.ssid
[1] != P2P_WILDCARD_SSID_LEN
||
2025 os_memcmp(msg
.ssid
+ 2, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
)
2027 /* The Probe Request is not part of P2P Device Discovery. It is
2028 * not known whether the source address of the frame is the P2P
2029 * Device Address or P2P Interface Address. Do not add a new
2030 * peer entry based on this frames.
2032 p2p_parse_free(&msg
);
2036 dev
= p2p_get_device(p2p
, addr
);
2038 if (msg
.listen_channel
) {
2041 if (dev
->country
[0] == 0)
2042 os_memcpy(dev
->country
, msg
.listen_channel
, 3);
2044 freq
= p2p_channel_to_freq(msg
.listen_channel
[3],
2045 msg
.listen_channel
[4]);
2047 if (freq
> 0 && dev
->listen_freq
!= freq
) {
2049 "Updated peer " MACSTR
" Listen channel (Probe Request): %d -> %d MHz",
2050 MAC2STR(addr
), dev
->listen_freq
, freq
);
2051 dev
->listen_freq
= freq
;
2055 os_get_reltime(&dev
->last_seen
);
2056 p2p_parse_free(&msg
);
2057 return; /* already known */
2060 dev
= p2p_create_device(p2p
, addr
);
2062 p2p_parse_free(&msg
);
2066 os_get_reltime(&dev
->last_seen
);
2067 dev
->flags
|= P2P_DEV_PROBE_REQ_ONLY
;
2069 if (msg
.listen_channel
) {
2070 os_memcpy(dev
->country
, msg
.listen_channel
, 3);
2071 dev
->listen_freq
= p2p_channel_to_freq(msg
.listen_channel
[3],
2072 msg
.listen_channel
[4]);
2075 p2p_copy_wps_info(p2p
, dev
, 1, &msg
);
2077 if (msg
.wfd_subelems
) {
2078 wpabuf_free(dev
->info
.wfd_subelems
);
2079 dev
->info
.wfd_subelems
= wpabuf_dup(msg
.wfd_subelems
);
2082 p2p_parse_free(&msg
);
2084 p2p_dbg(p2p
, "Created device entry based on Probe Req: " MACSTR
2085 " dev_capab=0x%x group_capab=0x%x name='%s' listen_freq=%d",
2086 MAC2STR(dev
->info
.p2p_device_addr
), dev
->info
.dev_capab
,
2087 dev
->info
.group_capab
, dev
->info
.device_name
,
2092 struct p2p_device
* p2p_add_dev_from_go_neg_req(struct p2p_data
*p2p
,
2094 struct p2p_message
*msg
)
2096 struct p2p_device
*dev
;
2098 dev
= p2p_get_device(p2p
, addr
);
2100 os_get_reltime(&dev
->last_seen
);
2101 return dev
; /* already known */
2104 dev
= p2p_create_device(p2p
, addr
);
2108 p2p_add_dev_info(p2p
, addr
, dev
, msg
);
2114 static int dev_type_match(const u8
*dev_type
, const u8
*req_dev_type
)
2116 if (os_memcmp(dev_type
, req_dev_type
, WPS_DEV_TYPE_LEN
) == 0)
2118 if (os_memcmp(dev_type
, req_dev_type
, 2) == 0 &&
2119 WPA_GET_BE32(&req_dev_type
[2]) == 0 &&
2120 WPA_GET_BE16(&req_dev_type
[6]) == 0)
2121 return 1; /* Category match with wildcard OUI/sub-category */
2126 int dev_type_list_match(const u8
*dev_type
, const u8
*req_dev_type
[],
2127 size_t num_req_dev_type
)
2130 for (i
= 0; i
< num_req_dev_type
; i
++) {
2131 if (dev_type_match(dev_type
, req_dev_type
[i
]))
2139 * p2p_match_dev_type - Match local device type with requested type
2140 * @p2p: P2P module context from p2p_init()
2141 * @wps: WPS TLVs from Probe Request frame (concatenated WPS IEs)
2142 * Returns: 1 on match, 0 on mismatch
2144 * This function can be used to match the Requested Device Type attribute in
2145 * WPS IE with the local device types for deciding whether to reply to a Probe
2148 int p2p_match_dev_type(struct p2p_data
*p2p
, struct wpabuf
*wps
)
2150 struct wps_parse_attr attr
;
2153 if (wps_parse_msg(wps
, &attr
))
2154 return 1; /* assume no Requested Device Type attributes */
2156 if (attr
.num_req_dev_type
== 0)
2157 return 1; /* no Requested Device Type attributes -> match */
2159 if (dev_type_list_match(p2p
->cfg
->pri_dev_type
, attr
.req_dev_type
,
2160 attr
.num_req_dev_type
))
2161 return 1; /* Own Primary Device Type matches */
2163 for (i
= 0; i
< p2p
->cfg
->num_sec_dev_types
; i
++) {
2164 if (dev_type_list_match(p2p
->cfg
->sec_dev_type
[i
],
2166 attr
.num_req_dev_type
))
2167 return 1; /* Own Secondary Device Type matches */
2170 /* No matching device type found */
2175 struct wpabuf
* p2p_build_probe_resp_ies(struct p2p_data
*p2p
,
2176 const u8
*query_hash
,
2184 #ifdef CONFIG_WIFI_DISPLAY
2185 if (p2p
->wfd_ie_probe_resp
)
2186 extra
= wpabuf_len(p2p
->wfd_ie_probe_resp
);
2187 #endif /* CONFIG_WIFI_DISPLAY */
2189 if (p2p
->vendor_elem
&& p2p
->vendor_elem
[VENDOR_ELEM_PROBE_RESP_P2P
])
2190 extra
+= wpabuf_len(p2p
->vendor_elem
[VENDOR_ELEM_PROBE_RESP_P2P
]);
2193 extra
+= MAX_SVC_ADV_IE_LEN
;
2195 buf
= wpabuf_alloc(1000 + extra
);
2199 if (p2p
->go_neg_peer
) {
2200 /* Advertise immediate availability of WPS credential */
2201 pw_id
= p2p_wps_method_pw_id(p2p
->go_neg_peer
->wps_method
);
2204 if (p2p_build_wps_ie(p2p
, buf
, pw_id
, 1) < 0) {
2205 p2p_dbg(p2p
, "Failed to build WPS IE for Probe Response");
2210 #ifdef CONFIG_WIFI_DISPLAY
2211 if (p2p
->wfd_ie_probe_resp
)
2212 wpabuf_put_buf(buf
, p2p
->wfd_ie_probe_resp
);
2213 #endif /* CONFIG_WIFI_DISPLAY */
2215 if (p2p
->vendor_elem
&& p2p
->vendor_elem
[VENDOR_ELEM_PROBE_RESP_P2P
])
2217 p2p
->vendor_elem
[VENDOR_ELEM_PROBE_RESP_P2P
]);
2220 len
= p2p_buf_add_ie_hdr(buf
);
2221 p2p_buf_add_capability(buf
, p2p
->dev_capab
&
2222 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
, 0);
2223 if (p2p
->ext_listen_interval
)
2224 p2p_buf_add_ext_listen_timing(buf
, p2p
->ext_listen_period
,
2225 p2p
->ext_listen_interval
);
2226 p2p_buf_add_device_info(buf
, p2p
, NULL
);
2227 p2p_buf_update_ie_hdr(buf
, len
);
2230 p2p_buf_add_service_instance(buf
, p2p
, query_count
, query_hash
,
2231 p2p
->p2ps_adv_list
);
2237 static int p2p_build_probe_resp_buf(struct p2p_data
*p2p
, struct wpabuf
*buf
,
2239 const u8
*addr
, int rx_freq
)
2241 struct ieee80211_mgmt
*resp
;
2242 u8 channel
, op_class
;
2244 resp
= wpabuf_put(buf
, offsetof(struct ieee80211_mgmt
,
2245 u
.probe_resp
.variable
));
2247 resp
->frame_control
= host_to_le16((WLAN_FC_TYPE_MGMT
<< 2) |
2248 (WLAN_FC_STYPE_PROBE_RESP
<< 4));
2249 os_memcpy(resp
->da
, addr
, ETH_ALEN
);
2250 os_memcpy(resp
->sa
, p2p
->cfg
->dev_addr
, ETH_ALEN
);
2251 os_memcpy(resp
->bssid
, p2p
->cfg
->dev_addr
, ETH_ALEN
);
2252 resp
->u
.probe_resp
.beacon_int
= host_to_le16(100);
2253 /* hardware or low-level driver will setup seq_ctrl and timestamp */
2254 resp
->u
.probe_resp
.capab_info
=
2255 host_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE
|
2256 WLAN_CAPABILITY_PRIVACY
|
2257 WLAN_CAPABILITY_SHORT_SLOT_TIME
);
2259 wpabuf_put_u8(buf
, WLAN_EID_SSID
);
2260 wpabuf_put_u8(buf
, P2P_WILDCARD_SSID_LEN
);
2261 wpabuf_put_data(buf
, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
);
2263 wpabuf_put_u8(buf
, WLAN_EID_SUPP_RATES
);
2264 wpabuf_put_u8(buf
, 8);
2265 wpabuf_put_u8(buf
, (60 / 5) | 0x80);
2266 wpabuf_put_u8(buf
, 90 / 5);
2267 wpabuf_put_u8(buf
, (120 / 5) | 0x80);
2268 wpabuf_put_u8(buf
, 180 / 5);
2269 wpabuf_put_u8(buf
, (240 / 5) | 0x80);
2270 wpabuf_put_u8(buf
, 360 / 5);
2271 wpabuf_put_u8(buf
, 480 / 5);
2272 wpabuf_put_u8(buf
, 540 / 5);
2275 channel
= p2p
->cfg
->channel
;
2276 } else if (p2p_freq_to_channel(rx_freq
, &op_class
, &channel
)) {
2277 p2p_err(p2p
, "Failed to convert freq to channel");
2281 wpabuf_put_u8(buf
, WLAN_EID_DS_PARAMS
);
2282 wpabuf_put_u8(buf
, 1);
2283 wpabuf_put_u8(buf
, channel
);
2285 wpabuf_put_buf(buf
, ies
);
2290 static int p2p_service_find_asp(struct p2p_data
*p2p
, const u8
*hash
)
2292 struct p2ps_advertisement
*adv_data
;
2295 p2p_dbg(p2p
, "ASP find - ASP list: %p", p2p
->p2ps_adv_list
);
2297 /* Wildcard org.wi-fi.wfds matches any WFA spec defined service */
2298 any_wfa
= os_memcmp(hash
, p2p
->wild_card_hash
, P2PS_HASH_LEN
) == 0;
2300 adv_data
= p2p
->p2ps_adv_list
;
2302 if (os_memcmp(hash
, adv_data
->hash
, P2PS_HASH_LEN
) == 0)
2303 return 1; /* exact hash match */
2305 os_strncmp(adv_data
->svc_name
, P2PS_WILD_HASH_STR
,
2306 os_strlen(P2PS_WILD_HASH_STR
)) == 0)
2307 return 1; /* WFA service match */
2308 adv_data
= adv_data
->next
;
2315 static enum p2p_probe_req_status
2316 p2p_reply_probe(struct p2p_data
*p2p
, const u8
*addr
, const u8
*dst
,
2317 const u8
*bssid
, const u8
*ie
, size_t ie_len
,
2318 unsigned int rx_freq
)
2320 struct ieee802_11_elems elems
;
2322 struct p2p_message msg
;
2325 if (ieee802_11_parse_elems((u8
*) ie
, ie_len
, &elems
, 0) ==
2327 /* Ignore invalid Probe Request frames */
2328 p2p_dbg(p2p
, "Could not parse Probe Request frame - ignore it");
2329 return P2P_PREQ_MALFORMED
;
2332 if (elems
.p2p
== NULL
) {
2333 /* not a P2P probe - ignore it */
2334 p2p_dbg(p2p
, "Not a P2P probe - ignore it");
2335 return P2P_PREQ_NOT_P2P
;
2338 if (dst
&& !is_broadcast_ether_addr(dst
) &&
2339 os_memcmp(dst
, p2p
->cfg
->dev_addr
, ETH_ALEN
) != 0) {
2340 /* Not sent to the broadcast address or our P2P Device Address
2342 p2p_dbg(p2p
, "Probe Req DA " MACSTR
" not ours - ignore it",
2344 return P2P_PREQ_NOT_PROCESSED
;
2347 if (bssid
&& !is_broadcast_ether_addr(bssid
)) {
2348 /* Not sent to the Wildcard BSSID */
2349 p2p_dbg(p2p
, "Probe Req BSSID " MACSTR
" not wildcard - ignore it",
2351 return P2P_PREQ_NOT_PROCESSED
;
2354 if (elems
.ssid
== NULL
|| elems
.ssid_len
!= P2P_WILDCARD_SSID_LEN
||
2355 os_memcmp(elems
.ssid
, P2P_WILDCARD_SSID
, P2P_WILDCARD_SSID_LEN
) !=
2357 /* not using P2P Wildcard SSID - ignore */
2358 p2p_dbg(p2p
, "Probe Req not using P2P Wildcard SSID - ignore it");
2359 return P2P_PREQ_NOT_PROCESSED
;
2362 if (supp_rates_11b_only(&elems
)) {
2363 /* Indicates support for 11b rates only */
2364 p2p_dbg(p2p
, "Probe Req with 11b rates only supported - ignore it");
2365 return P2P_PREQ_NOT_P2P
;
2368 os_memset(&msg
, 0, sizeof(msg
));
2369 if (p2p_parse_ies(ie
, ie_len
, &msg
) < 0) {
2370 /* Could not parse P2P attributes */
2371 p2p_dbg(p2p
, "Could not parse P2P attributes in Probe Req - ignore it");
2372 return P2P_PREQ_NOT_P2P
;
2375 if (msg
.service_hash
&& msg
.service_hash_count
) {
2376 const u8
*hash
= msg
.service_hash
;
2378 int p2ps_svc_found
= 0;
2380 p2p_dbg(p2p
, "in_listen=%d drv_in_listen=%d when received P2PS Probe Request at %u MHz; own Listen channel %u, pending listen freq %u MHz",
2381 p2p
->in_listen
, p2p
->drv_in_listen
, rx_freq
,
2382 p2p
->cfg
->channel
, p2p
->pending_listen_freq
);
2384 if (!p2p
->in_listen
&& !p2p
->drv_in_listen
&&
2385 p2p
->pending_listen_freq
&& rx_freq
&&
2386 rx_freq
!= p2p
->pending_listen_freq
) {
2387 p2p_dbg(p2p
, "Do not reply to Probe Request frame that was received on %u MHz while waiting to start Listen state on %u MHz",
2388 rx_freq
, p2p
->pending_listen_freq
);
2389 p2p_parse_free(&msg
);
2390 return P2P_PREQ_NOT_LISTEN
;
2393 for (i
= 0; i
< msg
.service_hash_count
; i
++) {
2394 if (p2p_service_find_asp(p2p
, hash
)) {
2395 p2p_dbg(p2p
, "Service Hash match found: "
2396 MACSTR
, MAC2STR(hash
));
2400 hash
+= P2PS_HASH_LEN
;
2403 /* Probed hash unknown */
2404 if (!p2ps_svc_found
) {
2405 p2p_dbg(p2p
, "No Service Hash match found");
2406 p2p_parse_free(&msg
);
2407 return P2P_PREQ_NOT_PROCESSED
;
2410 /* This is not a P2PS Probe Request */
2411 p2p_dbg(p2p
, "No P2PS Hash in Probe Request");
2413 if (!p2p
->in_listen
|| !p2p
->drv_in_listen
) {
2414 /* not in Listen state - ignore Probe Request */
2415 p2p_dbg(p2p
, "Not in Listen state (in_listen=%d drv_in_listen=%d) - ignore Probe Request",
2416 p2p
->in_listen
, p2p
->drv_in_listen
);
2417 p2p_parse_free(&msg
);
2418 return P2P_PREQ_NOT_LISTEN
;
2422 if (msg
.device_id
&&
2423 os_memcmp(msg
.device_id
, p2p
->cfg
->dev_addr
, ETH_ALEN
) != 0) {
2424 /* Device ID did not match */
2425 p2p_dbg(p2p
, "Probe Req requested Device ID " MACSTR
" did not match - ignore it",
2426 MAC2STR(msg
.device_id
));
2427 p2p_parse_free(&msg
);
2428 return P2P_PREQ_NOT_PROCESSED
;
2431 /* Check Requested Device Type match */
2432 if (msg
.wps_attributes
&&
2433 !p2p_match_dev_type(p2p
, msg
.wps_attributes
)) {
2434 /* No match with Requested Device Type */
2435 p2p_dbg(p2p
, "Probe Req requestred Device Type did not match - ignore it");
2436 p2p_parse_free(&msg
);
2437 return P2P_PREQ_NOT_PROCESSED
;
2440 if (!p2p
->cfg
->send_probe_resp
) {
2441 /* Response generated elsewhere */
2442 p2p_dbg(p2p
, "Probe Resp generated elsewhere - do not generate additional response");
2443 p2p_parse_free(&msg
);
2444 return P2P_PREQ_NOT_PROCESSED
;
2447 p2p_dbg(p2p
, "Reply to P2P Probe Request in Listen state");
2450 * We do not really have a specific BSS that this frame is advertising,
2451 * so build a frame that has some information in valid format. This is
2452 * really only used for discovery purposes, not to learn exact BSS
2455 ies
= p2p_build_probe_resp_ies(p2p
, msg
.service_hash
,
2456 msg
.service_hash_count
);
2457 p2p_parse_free(&msg
);
2459 return P2P_PREQ_NOT_PROCESSED
;
2461 buf
= wpabuf_alloc(200 + wpabuf_len(ies
));
2464 return P2P_PREQ_NOT_PROCESSED
;
2467 if (p2p_build_probe_resp_buf(p2p
, buf
, ies
, addr
, rx_freq
)) {
2470 return P2P_PREQ_NOT_PROCESSED
;
2475 p2p
->cfg
->send_probe_resp(p2p
->cfg
->cb_ctx
, buf
, rx_freq
);
2479 return P2P_PREQ_PROCESSED
;
2483 enum p2p_probe_req_status
2484 p2p_probe_req_rx(struct p2p_data
*p2p
, const u8
*addr
, const u8
*dst
,
2485 const u8
*bssid
, const u8
*ie
, size_t ie_len
,
2486 unsigned int rx_freq
, int p2p_lo_started
)
2488 enum p2p_probe_req_status res
;
2490 p2p_add_dev_from_probe_req(p2p
, addr
, ie
, ie_len
);
2492 if (p2p_lo_started
) {
2494 "Probe Response is offloaded, do not reply Probe Request");
2495 return P2P_PREQ_PROCESSED
;
2498 res
= p2p_reply_probe(p2p
, addr
, dst
, bssid
, ie
, ie_len
, rx_freq
);
2499 if (res
!= P2P_PREQ_PROCESSED
&& res
!= P2P_PREQ_NOT_PROCESSED
)
2503 * Activate a pending GO Negotiation/Invite flow if a received Probe
2504 * Request frame is from an expected peer. Some devices may share the
2505 * same address for P2P and non-P2P STA running simultaneously. The
2506 * P2P_PREQ_PROCESSED and P2P_PREQ_NOT_PROCESSED p2p_reply_probe()
2507 * return values verified above ensure we are handling a Probe Request
2508 * frame from a P2P peer.
2510 if ((p2p
->state
== P2P_CONNECT
|| p2p
->state
== P2P_CONNECT_LISTEN
) &&
2512 os_memcmp(addr
, p2p
->go_neg_peer
->info
.p2p_device_addr
, ETH_ALEN
)
2514 !(p2p
->go_neg_peer
->flags
& P2P_DEV_WAIT_GO_NEG_CONFIRM
)) {
2515 /* Received a Probe Request from GO Negotiation peer */
2516 p2p_dbg(p2p
, "Found GO Negotiation peer - try to start GO negotiation from timeout");
2517 eloop_cancel_timeout(p2p_go_neg_start
, p2p
, NULL
);
2518 eloop_register_timeout(0, 0, p2p_go_neg_start
, p2p
, NULL
);
2522 if ((p2p
->state
== P2P_INVITE
|| p2p
->state
== P2P_INVITE_LISTEN
) &&
2524 (p2p
->invite_peer
->flags
& P2P_DEV_WAIT_INV_REQ_ACK
) &&
2525 os_memcmp(addr
, p2p
->invite_peer
->info
.p2p_device_addr
, ETH_ALEN
)
2527 /* Received a Probe Request from Invite peer */
2528 p2p_dbg(p2p
, "Found Invite peer - try to start Invite from timeout");
2529 eloop_cancel_timeout(p2p_invite_start
, p2p
, NULL
);
2530 eloop_register_timeout(0, 0, p2p_invite_start
, p2p
, NULL
);
2538 static int p2p_assoc_req_ie_wlan_ap(struct p2p_data
*p2p
, const u8
*bssid
,
2539 u8
*buf
, size_t len
, struct wpabuf
*p2p_ie
)
2546 struct p2p_message msg
;
2549 return 0; /* WLAN AP is not a P2P manager */
2551 os_memset(&msg
, 0, sizeof(msg
));
2552 if (p2p_parse_p2p_ie(p2p_ie
, &msg
) < 0)
2555 p2p_dbg(p2p
, "BSS P2P manageability %s",
2556 msg
.manageability
? "enabled" : "disabled");
2558 if (!msg
.manageability
)
2562 * (Re)Association Request - P2P IE
2563 * P2P Capability attribute (shall be present)
2564 * P2P Interface attribute (present if concurrent device and
2565 * P2P Management is enabled)
2567 tmp
= wpabuf_alloc(200);
2571 lpos
= p2p_buf_add_ie_hdr(tmp
);
2573 if (p2p
->num_groups
> 0) {
2574 group_capab
|= P2P_GROUP_CAPAB_GROUP_OWNER
;
2575 if ((p2p
->dev_capab
& P2P_DEV_CAPAB_CONCURRENT_OPER
) &&
2576 (p2p
->dev_capab
& P2P_DEV_CAPAB_INFRA_MANAGED
) &&
2578 group_capab
|= P2P_GROUP_CAPAB_CROSS_CONN
;
2580 p2p_buf_add_capability(tmp
, p2p
->dev_capab
, group_capab
);
2581 if ((p2p
->dev_capab
& P2P_DEV_CAPAB_CONCURRENT_OPER
) &&
2582 (p2p
->dev_capab
& P2P_DEV_CAPAB_INFRA_MANAGED
))
2583 p2p_buf_add_p2p_interface(tmp
, p2p
);
2584 p2p_buf_update_ie_hdr(tmp
, lpos
);
2586 tmplen
= wpabuf_len(tmp
);
2590 os_memcpy(buf
, wpabuf_head(tmp
), tmplen
);
2599 int p2p_assoc_req_ie(struct p2p_data
*p2p
, const u8
*bssid
, u8
*buf
,
2600 size_t len
, int p2p_group
, struct wpabuf
*p2p_ie
)
2604 struct p2p_device
*peer
;
2610 return p2p_assoc_req_ie_wlan_ap(p2p
, bssid
, buf
, len
, p2p_ie
);
2612 #ifdef CONFIG_WIFI_DISPLAY
2613 if (p2p
->wfd_ie_assoc_req
)
2614 extra
= wpabuf_len(p2p
->wfd_ie_assoc_req
);
2615 #endif /* CONFIG_WIFI_DISPLAY */
2617 if (p2p
->vendor_elem
&& p2p
->vendor_elem
[VENDOR_ELEM_P2P_ASSOC_REQ
])
2618 extra
+= wpabuf_len(p2p
->vendor_elem
[VENDOR_ELEM_P2P_ASSOC_REQ
]);
2621 * (Re)Association Request - P2P IE
2622 * P2P Capability attribute (shall be present)
2623 * Extended Listen Timing (may be present)
2624 * P2P Device Info attribute (shall be present)
2626 tmp
= wpabuf_alloc(200 + extra
);
2630 #ifdef CONFIG_WIFI_DISPLAY
2631 if (p2p
->wfd_ie_assoc_req
)
2632 wpabuf_put_buf(tmp
, p2p
->wfd_ie_assoc_req
);
2633 #endif /* CONFIG_WIFI_DISPLAY */
2635 if (p2p
->vendor_elem
&& p2p
->vendor_elem
[VENDOR_ELEM_P2P_ASSOC_REQ
])
2637 p2p
->vendor_elem
[VENDOR_ELEM_P2P_ASSOC_REQ
]);
2639 peer
= bssid
? p2p_get_device(p2p
, bssid
) : NULL
;
2641 lpos
= p2p_buf_add_ie_hdr(tmp
);
2642 p2p_buf_add_capability(tmp
, p2p
->dev_capab
, 0);
2643 if (p2p
->ext_listen_interval
)
2644 p2p_buf_add_ext_listen_timing(tmp
, p2p
->ext_listen_period
,
2645 p2p
->ext_listen_interval
);
2646 p2p_buf_add_device_info(tmp
, p2p
, peer
);
2647 p2p_buf_update_ie_hdr(tmp
, lpos
);
2649 tmplen
= wpabuf_len(tmp
);
2653 os_memcpy(buf
, wpabuf_head(tmp
), tmplen
);
2662 int p2p_scan_result_text(const u8
*ies
, size_t ies_len
, char *buf
, char *end
)
2664 struct wpabuf
*p2p_ie
;
2667 p2p_ie
= ieee802_11_vendor_ie_concat(ies
, ies_len
, P2P_IE_VENDOR_TYPE
);
2671 ret
= p2p_attr_text(p2p_ie
, buf
, end
);
2672 wpabuf_free(p2p_ie
);
2677 struct p2ps_advertisement
*
2678 p2p_service_p2ps_id(struct p2p_data
*p2p
, u32 adv_id
)
2680 struct p2ps_advertisement
*adv_data
;
2685 adv_data
= p2p
->p2ps_adv_list
;
2687 if (adv_data
->id
== adv_id
)
2689 adv_data
= adv_data
->next
;
2696 int p2p_service_del_asp(struct p2p_data
*p2p
, u32 adv_id
)
2698 struct p2ps_advertisement
*adv_data
;
2699 struct p2ps_advertisement
**prior
;
2704 adv_data
= p2p
->p2ps_adv_list
;
2705 prior
= &p2p
->p2ps_adv_list
;
2707 if (adv_data
->id
== adv_id
) {
2708 p2p_dbg(p2p
, "Delete ASP adv_id=0x%x", adv_id
);
2709 *prior
= adv_data
->next
;
2713 prior
= &adv_data
->next
;
2714 adv_data
= adv_data
->next
;
2721 int p2p_service_add_asp(struct p2p_data
*p2p
, int auto_accept
, u32 adv_id
,
2722 const char *adv_str
, u8 svc_state
, u16 config_methods
,
2723 const char *svc_info
, const u8
*cpt_priority
)
2725 struct p2ps_advertisement
*adv_data
, *tmp
, **prev
;
2726 u8 buf
[P2PS_HASH_LEN
];
2727 size_t adv_data_len
, adv_len
, info_len
= 0;
2730 if (!p2p
|| !adv_str
|| !adv_str
[0] || !cpt_priority
)
2733 if (!(config_methods
& p2p
->cfg
->config_methods
)) {
2734 p2p_dbg(p2p
, "Config methods not supported svc: 0x%x dev: 0x%x",
2735 config_methods
, p2p
->cfg
->config_methods
);
2739 if (!p2ps_gen_hash(p2p
, adv_str
, buf
))
2743 info_len
= os_strlen(svc_info
);
2744 adv_len
= os_strlen(adv_str
);
2745 adv_data_len
= sizeof(struct p2ps_advertisement
) + adv_len
+ 1 +
2748 adv_data
= os_zalloc(adv_data_len
);
2752 os_memcpy(adv_data
->hash
, buf
, P2PS_HASH_LEN
);
2753 adv_data
->id
= adv_id
;
2754 adv_data
->state
= svc_state
;
2755 adv_data
->config_methods
= config_methods
& p2p
->cfg
->config_methods
;
2756 adv_data
->auto_accept
= (u8
) auto_accept
;
2757 os_memcpy(adv_data
->svc_name
, adv_str
, adv_len
);
2759 for (i
= 0; cpt_priority
[i
] && i
< P2PS_FEATURE_CAPAB_CPT_MAX
; i
++) {
2760 adv_data
->cpt_priority
[i
] = cpt_priority
[i
];
2761 adv_data
->cpt_mask
|= cpt_priority
[i
];
2764 if (svc_info
&& info_len
) {
2765 adv_data
->svc_info
= &adv_data
->svc_name
[adv_len
+ 1];
2766 os_memcpy(adv_data
->svc_info
, svc_info
, info_len
);
2770 * Group Advertisements by service string. They do not need to be
2771 * sorted, but groups allow easier Probe Response instance grouping
2773 tmp
= p2p
->p2ps_adv_list
;
2774 prev
= &p2p
->p2ps_adv_list
;
2776 if (tmp
->id
== adv_data
->id
) {
2777 if (os_strcmp(tmp
->svc_name
, adv_data
->svc_name
) != 0) {
2781 adv_data
->next
= tmp
->next
;
2786 if (os_strcmp(tmp
->svc_name
, adv_data
->svc_name
) == 0) {
2787 adv_data
->next
= tmp
->next
;
2788 tmp
->next
= adv_data
;
2796 /* No svc_name match found */
2797 adv_data
->next
= p2p
->p2ps_adv_list
;
2798 p2p
->p2ps_adv_list
= adv_data
;
2802 "Added ASP advertisement adv_id=0x%x config_methods=0x%x svc_state=0x%x adv_str='%s' cpt_mask=0x%x",
2803 adv_id
, adv_data
->config_methods
, svc_state
, adv_str
,
2804 adv_data
->cpt_mask
);
2810 void p2p_service_flush_asp(struct p2p_data
*p2p
)
2812 struct p2ps_advertisement
*adv
, *prev
;
2817 adv
= p2p
->p2ps_adv_list
;
2824 p2p
->p2ps_adv_list
= NULL
;
2825 p2p_dbg(p2p
, "All ASP advertisements flushed");
2829 int p2p_parse_dev_addr_in_p2p_ie(struct wpabuf
*p2p_ie
, u8
*dev_addr
)
2831 struct p2p_message msg
;
2833 os_memset(&msg
, 0, sizeof(msg
));
2834 if (p2p_parse_p2p_ie(p2p_ie
, &msg
))
2837 if (msg
.p2p_device_addr
) {
2838 os_memcpy(dev_addr
, msg
.p2p_device_addr
, ETH_ALEN
);
2840 } else if (msg
.device_id
) {
2841 os_memcpy(dev_addr
, msg
.device_id
, ETH_ALEN
);
2848 int p2p_parse_dev_addr(const u8
*ies
, size_t ies_len
, u8
*dev_addr
)
2850 struct wpabuf
*p2p_ie
;
2853 p2p_ie
= ieee802_11_vendor_ie_concat(ies
, ies_len
,
2854 P2P_IE_VENDOR_TYPE
);
2857 ret
= p2p_parse_dev_addr_in_p2p_ie(p2p_ie
, dev_addr
);
2858 wpabuf_free(p2p_ie
);
2863 static void p2p_clear_go_neg(struct p2p_data
*p2p
)
2865 p2p
->go_neg_peer
= NULL
;
2866 p2p_clear_timeout(p2p
);
2867 p2p_set_state(p2p
, P2P_IDLE
);
2871 void p2p_wps_success_cb(struct p2p_data
*p2p
, const u8
*mac_addr
)
2873 if (p2p
->go_neg_peer
== NULL
) {
2874 p2p_dbg(p2p
, "No pending Group Formation - ignore WPS registration success notification");
2875 return; /* No pending Group Formation */
2878 if (os_memcmp(mac_addr
, p2p
->go_neg_peer
->intended_addr
, ETH_ALEN
) !=
2880 p2p_dbg(p2p
, "Ignore WPS registration success notification for "
2881 MACSTR
" (GO Negotiation peer " MACSTR
")",
2883 MAC2STR(p2p
->go_neg_peer
->intended_addr
));
2884 return; /* Ignore unexpected peer address */
2887 p2p_dbg(p2p
, "Group Formation completed successfully with " MACSTR
,
2890 p2p_clear_go_neg(p2p
);
2894 void p2p_group_formation_failed(struct p2p_data
*p2p
)
2896 if (p2p
->go_neg_peer
== NULL
) {
2897 p2p_dbg(p2p
, "No pending Group Formation - ignore group formation failure notification");
2898 return; /* No pending Group Formation */
2901 p2p_dbg(p2p
, "Group Formation failed with " MACSTR
,
2902 MAC2STR(p2p
->go_neg_peer
->intended_addr
));
2904 p2p_clear_go_neg(p2p
);
2908 struct p2p_data
* p2p_init(const struct p2p_config
*cfg
)
2910 struct p2p_data
*p2p
;
2912 if (cfg
->max_peers
< 1 ||
2913 cfg
->passphrase_len
< 8 || cfg
->passphrase_len
> 63)
2916 p2p
= os_zalloc(sizeof(*p2p
) + sizeof(*cfg
));
2919 p2p
->cfg
= (struct p2p_config
*) (p2p
+ 1);
2920 os_memcpy(p2p
->cfg
, cfg
, sizeof(*cfg
));
2922 p2p
->cfg
->dev_name
= os_strdup(cfg
->dev_name
);
2923 if (cfg
->manufacturer
)
2924 p2p
->cfg
->manufacturer
= os_strdup(cfg
->manufacturer
);
2925 if (cfg
->model_name
)
2926 p2p
->cfg
->model_name
= os_strdup(cfg
->model_name
);
2927 if (cfg
->model_number
)
2928 p2p
->cfg
->model_number
= os_strdup(cfg
->model_number
);
2929 if (cfg
->serial_number
)
2930 p2p
->cfg
->serial_number
= os_strdup(cfg
->serial_number
);
2931 if (cfg
->pref_chan
) {
2932 p2p
->cfg
->pref_chan
= os_malloc(cfg
->num_pref_chan
*
2933 sizeof(struct p2p_channel
));
2934 if (p2p
->cfg
->pref_chan
) {
2935 os_memcpy(p2p
->cfg
->pref_chan
, cfg
->pref_chan
,
2936 cfg
->num_pref_chan
*
2937 sizeof(struct p2p_channel
));
2939 p2p
->cfg
->num_pref_chan
= 0;
2942 p2ps_gen_hash(p2p
, P2PS_WILD_HASH_STR
, p2p
->wild_card_hash
);
2944 p2p
->min_disc_int
= 1;
2945 p2p
->max_disc_int
= 3;
2946 p2p
->max_disc_tu
= -1;
2948 if (os_get_random(&p2p
->next_tie_breaker
, 1) < 0)
2949 p2p
->next_tie_breaker
= 0;
2950 p2p
->next_tie_breaker
&= 0x01;
2951 if (cfg
->sd_request
)
2952 p2p
->dev_capab
|= P2P_DEV_CAPAB_SERVICE_DISCOVERY
;
2953 p2p
->dev_capab
|= P2P_DEV_CAPAB_INVITATION_PROCEDURE
;
2954 if (cfg
->concurrent_operations
)
2955 p2p
->dev_capab
|= P2P_DEV_CAPAB_CONCURRENT_OPER
;
2956 p2p
->dev_capab
|= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
2958 dl_list_init(&p2p
->devices
);
2960 p2p
->go_timeout
= 100;
2961 p2p
->client_timeout
= 20;
2962 p2p
->num_p2p_sd_queries
= 0;
2964 p2p_dbg(p2p
, "initialized");
2965 p2p_channels_dump(p2p
, "channels", &p2p
->cfg
->channels
);
2966 p2p_channels_dump(p2p
, "cli_channels", &p2p
->cfg
->cli_channels
);
2972 void p2p_deinit(struct p2p_data
*p2p
)
2974 #ifdef CONFIG_WIFI_DISPLAY
2975 wpabuf_free(p2p
->wfd_ie_beacon
);
2976 wpabuf_free(p2p
->wfd_ie_probe_req
);
2977 wpabuf_free(p2p
->wfd_ie_probe_resp
);
2978 wpabuf_free(p2p
->wfd_ie_assoc_req
);
2979 wpabuf_free(p2p
->wfd_ie_invitation
);
2980 wpabuf_free(p2p
->wfd_ie_prov_disc_req
);
2981 wpabuf_free(p2p
->wfd_ie_prov_disc_resp
);
2982 wpabuf_free(p2p
->wfd_ie_go_neg
);
2983 wpabuf_free(p2p
->wfd_dev_info
);
2984 wpabuf_free(p2p
->wfd_assoc_bssid
);
2985 wpabuf_free(p2p
->wfd_coupled_sink_info
);
2986 #endif /* CONFIG_WIFI_DISPLAY */
2988 eloop_cancel_timeout(p2p_scan_timeout
, p2p
, NULL
);
2989 eloop_cancel_timeout(p2p_go_neg_start
, p2p
, NULL
);
2990 eloop_cancel_timeout(p2p_go_neg_wait_timeout
, p2p
, NULL
);
2992 p2p_free_req_dev_types(p2p
);
2993 os_free(p2p
->cfg
->dev_name
);
2994 os_free(p2p
->cfg
->manufacturer
);
2995 os_free(p2p
->cfg
->model_name
);
2996 os_free(p2p
->cfg
->model_number
);
2997 os_free(p2p
->cfg
->serial_number
);
2998 os_free(p2p
->cfg
->pref_chan
);
2999 os_free(p2p
->groups
);
3000 p2ps_prov_free(p2p
);
3001 wpabuf_free(p2p
->sd_resp
);
3002 os_free(p2p
->after_scan_tx
);
3003 p2p_remove_wps_vendor_extensions(p2p
);
3004 os_free(p2p
->no_go_freq
.range
);
3005 p2p_service_flush_asp(p2p
);
3011 void p2p_flush(struct p2p_data
*p2p
)
3013 struct p2p_device
*dev
, *prev
;
3015 p2p_ext_listen(p2p
, 0, 0);
3017 dl_list_for_each_safe(dev
, prev
, &p2p
->devices
, struct p2p_device
,
3019 dl_list_del(&dev
->list
);
3020 p2p_device_free(p2p
, dev
);
3022 p2p_free_sd_queries(p2p
);
3023 os_free(p2p
->after_scan_tx
);
3024 p2p
->after_scan_tx
= NULL
;
3029 int p2p_unauthorize(struct p2p_data
*p2p
, const u8
*addr
)
3031 struct p2p_device
*dev
;
3033 dev
= p2p_get_device(p2p
, addr
);
3037 p2p_dbg(p2p
, "Unauthorizing " MACSTR
, MAC2STR(addr
));
3039 if (p2p
->go_neg_peer
== dev
) {
3040 eloop_cancel_timeout(p2p_go_neg_wait_timeout
, p2p
, NULL
);
3041 p2p
->go_neg_peer
= NULL
;
3044 dev
->wps_method
= WPS_NOT_READY
;
3046 dev
->flags
&= ~P2P_DEV_WAIT_GO_NEG_RESPONSE
;
3047 dev
->flags
&= ~P2P_DEV_WAIT_GO_NEG_CONFIRM
;
3049 /* Check if after_scan_tx is for this peer. If so free it */
3050 if (p2p
->after_scan_tx
&&
3051 os_memcmp(addr
, p2p
->after_scan_tx
->dst
, ETH_ALEN
) == 0) {
3052 os_free(p2p
->after_scan_tx
);
3053 p2p
->after_scan_tx
= NULL
;
3060 int p2p_set_dev_name(struct p2p_data
*p2p
, const char *dev_name
)
3062 os_free(p2p
->cfg
->dev_name
);
3064 p2p
->cfg
->dev_name
= os_strdup(dev_name
);
3065 if (p2p
->cfg
->dev_name
== NULL
)
3068 p2p
->cfg
->dev_name
= NULL
;
3073 int p2p_set_manufacturer(struct p2p_data
*p2p
, const char *manufacturer
)
3075 os_free(p2p
->cfg
->manufacturer
);
3076 p2p
->cfg
->manufacturer
= NULL
;
3078 p2p
->cfg
->manufacturer
= os_strdup(manufacturer
);
3079 if (p2p
->cfg
->manufacturer
== NULL
)
3087 int p2p_set_model_name(struct p2p_data
*p2p
, const char *model_name
)
3089 os_free(p2p
->cfg
->model_name
);
3090 p2p
->cfg
->model_name
= NULL
;
3092 p2p
->cfg
->model_name
= os_strdup(model_name
);
3093 if (p2p
->cfg
->model_name
== NULL
)
3101 int p2p_set_model_number(struct p2p_data
*p2p
, const char *model_number
)
3103 os_free(p2p
->cfg
->model_number
);
3104 p2p
->cfg
->model_number
= NULL
;
3106 p2p
->cfg
->model_number
= os_strdup(model_number
);
3107 if (p2p
->cfg
->model_number
== NULL
)
3115 int p2p_set_serial_number(struct p2p_data
*p2p
, const char *serial_number
)
3117 os_free(p2p
->cfg
->serial_number
);
3118 p2p
->cfg
->serial_number
= NULL
;
3119 if (serial_number
) {
3120 p2p
->cfg
->serial_number
= os_strdup(serial_number
);
3121 if (p2p
->cfg
->serial_number
== NULL
)
3129 void p2p_set_config_methods(struct p2p_data
*p2p
, u16 config_methods
)
3131 p2p
->cfg
->config_methods
= config_methods
;
3135 void p2p_set_uuid(struct p2p_data
*p2p
, const u8
*uuid
)
3137 os_memcpy(p2p
->cfg
->uuid
, uuid
, 16);
3141 int p2p_set_pri_dev_type(struct p2p_data
*p2p
, const u8
*pri_dev_type
)
3143 os_memcpy(p2p
->cfg
->pri_dev_type
, pri_dev_type
, 8);
3148 int p2p_set_sec_dev_types(struct p2p_data
*p2p
, const u8 dev_types
[][8],
3149 size_t num_dev_types
)
3151 if (num_dev_types
> P2P_SEC_DEVICE_TYPES
)
3152 num_dev_types
= P2P_SEC_DEVICE_TYPES
;
3153 p2p
->cfg
->num_sec_dev_types
= num_dev_types
;
3154 os_memcpy(p2p
->cfg
->sec_dev_type
, dev_types
, num_dev_types
* 8);
3159 void p2p_remove_wps_vendor_extensions(struct p2p_data
*p2p
)
3163 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
3164 wpabuf_free(p2p
->wps_vendor_ext
[i
]);
3165 p2p
->wps_vendor_ext
[i
] = NULL
;
3170 int p2p_add_wps_vendor_extension(struct p2p_data
*p2p
,
3171 const struct wpabuf
*vendor_ext
)
3175 if (vendor_ext
== NULL
)
3178 for (i
= 0; i
< P2P_MAX_WPS_VENDOR_EXT
; i
++) {
3179 if (p2p
->wps_vendor_ext
[i
] == NULL
)
3182 if (i
>= P2P_MAX_WPS_VENDOR_EXT
)
3185 p2p
->wps_vendor_ext
[i
] = wpabuf_dup(vendor_ext
);
3186 if (p2p
->wps_vendor_ext
[i
] == NULL
)
3193 int p2p_set_country(struct p2p_data
*p2p
, const char *country
)
3195 os_memcpy(p2p
->cfg
->country
, country
, 3);
3200 static int p2p_pre_find_operation(struct p2p_data
*p2p
, struct p2p_device
*dev
)
3204 if (dev
->sd_pending_bcast_queries
== 0) {
3205 /* Initialize with total number of registered broadcast
3207 dev
->sd_pending_bcast_queries
= p2p
->num_p2p_sd_queries
;
3210 res
= p2p_start_sd(p2p
, dev
);
3216 if (dev
->req_config_methods
&&
3217 !(dev
->flags
& P2P_DEV_PD_FOR_JOIN
)) {
3218 p2p_dbg(p2p
, "Send pending Provision Discovery Request to "
3219 MACSTR
" (config methods 0x%x)",
3220 MAC2STR(dev
->info
.p2p_device_addr
),
3221 dev
->req_config_methods
);
3222 if (p2p_send_prov_disc_req(p2p
, dev
, 0, 0) == 0)
3230 void p2p_continue_find(struct p2p_data
*p2p
)
3232 struct p2p_device
*dev
;
3235 p2p_set_state(p2p
, P2P_SEARCH
);
3237 /* Continue from the device following the last iteration */
3239 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
3240 if (dev
== p2p
->last_p2p_find_oper
) {
3246 res
= p2p_pre_find_operation(p2p
, dev
);
3248 p2p
->last_p2p_find_oper
= dev
;
3256 * Wrap around to the beginning of the list and continue until the last
3259 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
3260 res
= p2p_pre_find_operation(p2p
, dev
);
3262 p2p
->last_p2p_find_oper
= dev
;
3267 if (dev
== p2p
->last_p2p_find_oper
)
3272 os_memset(p2p
->sd_query_no_ack
, 0, ETH_ALEN
);
3273 p2p_listen_in_find(p2p
, 1);
3277 static void p2p_sd_cb(struct p2p_data
*p2p
, int success
)
3279 p2p_dbg(p2p
, "Service Discovery Query TX callback: success=%d",
3281 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3285 if (is_zero_ether_addr(p2p
->sd_query_no_ack
)) {
3286 os_memcpy(p2p
->sd_query_no_ack
,
3287 p2p
->sd_peer
->info
.p2p_device_addr
,
3290 "First SD Query no-ACK in this search iteration: "
3291 MACSTR
, MAC2STR(p2p
->sd_query_no_ack
));
3293 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3295 p2p
->sd_peer
= NULL
;
3296 if (p2p
->state
!= P2P_IDLE
)
3297 p2p_continue_find(p2p
);
3301 if (p2p
->sd_peer
== NULL
) {
3302 p2p_dbg(p2p
, "No SD peer entry known");
3303 if (p2p
->state
!= P2P_IDLE
)
3304 p2p_continue_find(p2p
);
3308 if (p2p
->sd_query
&& p2p
->sd_query
->for_all_peers
) {
3309 /* Update the pending broadcast SD query count for this device
3311 p2p
->sd_peer
->sd_pending_bcast_queries
--;
3314 * If there are no pending broadcast queries for this device,
3315 * mark it as done (-1).
3317 if (p2p
->sd_peer
->sd_pending_bcast_queries
== 0)
3318 p2p
->sd_peer
->sd_pending_bcast_queries
= -1;
3321 /* Wait for response from the peer */
3322 p2p_set_state(p2p
, P2P_SD_DURING_FIND
);
3323 p2p_set_timeout(p2p
, 0, 200000);
3328 * p2p_retry_pd - Retry any pending provision disc requests in IDLE state
3329 * @p2p: P2P module context from p2p_init()
3331 static void p2p_retry_pd(struct p2p_data
*p2p
)
3333 struct p2p_device
*dev
;
3336 * Retry the prov disc req attempt only for the peer that the user had
3340 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
3341 if (os_memcmp(p2p
->pending_pd_devaddr
,
3342 dev
->info
.p2p_device_addr
, ETH_ALEN
) != 0)
3344 if (!dev
->req_config_methods
)
3347 p2p_dbg(p2p
, "Send pending Provision Discovery Request to "
3348 MACSTR
" (config methods 0x%x)",
3349 MAC2STR(dev
->info
.p2p_device_addr
),
3350 dev
->req_config_methods
);
3351 p2p_send_prov_disc_req(p2p
, dev
,
3352 dev
->flags
& P2P_DEV_PD_FOR_JOIN
,
3353 p2p
->pd_force_freq
);
3359 static void p2p_prov_disc_cb(struct p2p_data
*p2p
, int success
)
3361 p2p_dbg(p2p
, "Provision Discovery Request TX callback: success=%d",
3365 * Postpone resetting the pending action state till after we actually
3366 * time out. This allows us to take some action like notifying any
3367 * interested parties about no response to the request.
3369 * When the timer (below) goes off we check in IDLE, SEARCH, or
3370 * LISTEN_ONLY state, which are the only allowed states to issue a PD
3371 * requests in, if this was still pending and then raise notification.
3375 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3377 if (p2p
->user_initiated_pd
&&
3378 (p2p
->state
== P2P_SEARCH
|| p2p
->state
== P2P_LISTEN_ONLY
))
3380 /* Retry request from timeout to avoid busy loops */
3381 p2p
->pending_action_state
= P2P_PENDING_PD
;
3382 p2p_set_timeout(p2p
, 0, 50000);
3383 } else if (p2p
->state
!= P2P_IDLE
)
3384 p2p_continue_find(p2p
);
3385 else if (p2p
->user_initiated_pd
) {
3386 p2p
->pending_action_state
= P2P_PENDING_PD
;
3387 p2p_set_timeout(p2p
, 0, 300000);
3393 * If after PD Request the peer doesn't expect to receive PD Response
3394 * the PD Request ACK indicates a completion of the current PD. This
3395 * happens only on the advertiser side sending the follow-on PD Request
3396 * with the status different than 12 (Success: accepted by user).
3398 if (p2p
->p2ps_prov
&& !p2p
->p2ps_prov
->pd_seeker
&&
3399 p2p
->p2ps_prov
->status
!= P2P_SC_SUCCESS_DEFERRED
) {
3400 p2p_dbg(p2p
, "P2PS PD completion on Follow-on PD Request ACK");
3402 if (p2p
->send_action_in_progress
) {
3403 p2p
->send_action_in_progress
= 0;
3404 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3407 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3409 if (p2p
->cfg
->p2ps_prov_complete
) {
3410 p2p
->cfg
->p2ps_prov_complete(
3412 p2p
->p2ps_prov
->status
,
3413 p2p
->p2ps_prov
->adv_mac
,
3414 p2p
->p2ps_prov
->adv_mac
,
3415 p2p
->p2ps_prov
->session_mac
,
3416 NULL
, p2p
->p2ps_prov
->adv_id
,
3417 p2p
->p2ps_prov
->session_id
,
3418 0, 0, NULL
, 0, 0, 0,
3419 NULL
, NULL
, 0, 0, NULL
, 0);
3422 if (p2p
->user_initiated_pd
)
3423 p2p_reset_pending_pd(p2p
);
3425 p2ps_prov_free(p2p
);
3430 * This postponing, of resetting pending_action_state, needs to be
3431 * done only for user initiated PD requests and not internal ones.
3433 if (p2p
->user_initiated_pd
)
3434 p2p
->pending_action_state
= P2P_PENDING_PD
;
3436 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3438 /* Wait for response from the peer */
3439 if (p2p
->state
== P2P_SEARCH
)
3440 p2p_set_state(p2p
, P2P_PD_DURING_FIND
);
3441 p2p_set_timeout(p2p
, 0, 200000);
3445 static int p2p_check_after_scan_tx_continuation(struct p2p_data
*p2p
)
3447 if (p2p
->after_scan_tx_in_progress
) {
3448 p2p
->after_scan_tx_in_progress
= 0;
3449 if (p2p
->start_after_scan
!= P2P_AFTER_SCAN_NOTHING
&&
3450 p2p_run_after_scan(p2p
))
3452 if (p2p
->state
== P2P_SEARCH
) {
3453 p2p_dbg(p2p
, "Continue find after after_scan_tx completion");
3454 p2p_continue_find(p2p
);
3462 static void p2p_prov_disc_resp_cb(struct p2p_data
*p2p
, int success
)
3464 p2p_dbg(p2p
, "Provision Discovery Response TX callback: success=%d",
3467 if (p2p
->send_action_in_progress
) {
3468 p2p
->send_action_in_progress
= 0;
3469 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3472 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3475 goto continue_search
;
3477 if (!p2p
->cfg
->prov_disc_resp_cb
||
3478 p2p
->cfg
->prov_disc_resp_cb(p2p
->cfg
->cb_ctx
) < 1)
3479 goto continue_search
;
3482 "Post-Provision Discovery operations started - do not try to continue other P2P operations");
3486 p2p_check_after_scan_tx_continuation(p2p
);
3490 int p2p_scan_res_handler(struct p2p_data
*p2p
, const u8
*bssid
, int freq
,
3491 struct os_reltime
*rx_time
, int level
, const u8
*ies
,
3494 if (os_reltime_before(rx_time
, &p2p
->find_start
)) {
3496 * The driver may have cached (e.g., in cfg80211 BSS table) the
3497 * scan results for relatively long time. To avoid reporting
3498 * stale information, update P2P peers only based on results
3499 * that have based on frames received after the last p2p_find
3500 * operation was started.
3502 p2p_dbg(p2p
, "Ignore old scan result for " MACSTR
3503 " (rx_time=%u.%06u find_start=%u.%06u)",
3504 MAC2STR(bssid
), (unsigned int) rx_time
->sec
,
3505 (unsigned int) rx_time
->usec
,
3506 (unsigned int) p2p
->find_start
.sec
,
3507 (unsigned int) p2p
->find_start
.usec
);
3511 p2p_add_device(p2p
, bssid
, freq
, rx_time
, level
, ies
, ies_len
, 1);
3517 void p2p_scan_res_handled(struct p2p_data
*p2p
)
3519 if (!p2p
->p2p_scan_running
) {
3520 p2p_dbg(p2p
, "p2p_scan was not running, but scan results received");
3522 p2p
->p2p_scan_running
= 0;
3523 eloop_cancel_timeout(p2p_scan_timeout
, p2p
, NULL
);
3525 if (p2p_run_after_scan(p2p
))
3527 if (p2p
->state
== P2P_SEARCH
)
3528 p2p_continue_find(p2p
);
3532 void p2p_scan_ie(struct p2p_data
*p2p
, struct wpabuf
*ies
, const u8
*dev_id
,
3538 #ifdef CONFIG_WIFI_DISPLAY
3539 if (p2p
->wfd_ie_probe_req
)
3540 wpabuf_put_buf(ies
, p2p
->wfd_ie_probe_req
);
3541 #endif /* CONFIG_WIFI_DISPLAY */
3543 if (p2p
->vendor_elem
&& p2p
->vendor_elem
[VENDOR_ELEM_PROBE_REQ_P2P
])
3545 p2p
->vendor_elem
[VENDOR_ELEM_PROBE_REQ_P2P
]);
3547 len
= p2p_buf_add_ie_hdr(ies
);
3549 dev_capab
= p2p
->dev_capab
& ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
3551 /* P2PS requires Probe Request frames to include SD bit */
3552 if (p2p
->p2ps_seek
&& p2p
->p2ps_seek_count
)
3553 dev_capab
|= P2P_DEV_CAPAB_SERVICE_DISCOVERY
;
3555 p2p_buf_add_capability(ies
, dev_capab
, 0);
3558 p2p_buf_add_device_id(ies
, dev_id
);
3559 if (p2p
->cfg
->reg_class
&& p2p
->cfg
->channel
)
3560 p2p_buf_add_listen_channel(ies
, p2p
->cfg
->country
,
3561 p2p
->cfg
->reg_class
,
3563 if (p2p
->ext_listen_interval
)
3564 p2p_buf_add_ext_listen_timing(ies
, p2p
->ext_listen_period
,
3565 p2p
->ext_listen_interval
);
3567 if (bands
& BAND_60_GHZ
)
3568 p2p_buf_add_device_info(ies
, p2p
, NULL
);
3570 if (p2p
->p2ps_seek
&& p2p
->p2ps_seek_count
)
3571 p2p_buf_add_service_hash(ies
, p2p
);
3573 /* TODO: p2p_buf_add_operating_channel() if GO */
3574 p2p_buf_update_ie_hdr(ies
, len
);
3578 size_t p2p_scan_ie_buf_len(struct p2p_data
*p2p
)
3582 #ifdef CONFIG_WIFI_DISPLAY
3583 if (p2p
&& p2p
->wfd_ie_probe_req
)
3584 len
+= wpabuf_len(p2p
->wfd_ie_probe_req
);
3585 #endif /* CONFIG_WIFI_DISPLAY */
3587 if (p2p
&& p2p
->vendor_elem
&&
3588 p2p
->vendor_elem
[VENDOR_ELEM_PROBE_REQ_P2P
])
3589 len
+= wpabuf_len(p2p
->vendor_elem
[VENDOR_ELEM_PROBE_REQ_P2P
]);
3595 int p2p_ie_text(struct wpabuf
*p2p_ie
, char *buf
, char *end
)
3597 return p2p_attr_text(p2p_ie
, buf
, end
);
3601 static void p2p_go_neg_req_cb(struct p2p_data
*p2p
, int success
)
3603 struct p2p_device
*dev
= p2p
->go_neg_peer
;
3606 p2p_dbg(p2p
, "GO Negotiation Request TX callback: success=%d", success
);
3609 p2p_dbg(p2p
, "No pending GO Negotiation");
3614 if (dev
->flags
& P2P_DEV_USER_REJECTED
) {
3615 p2p_set_state(p2p
, P2P_IDLE
);
3618 } else if (dev
->go_neg_req_sent
) {
3619 /* Cancel the increment from p2p_connect_send() on failure */
3620 dev
->go_neg_req_sent
--;
3624 (dev
->info
.dev_capab
& P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
) &&
3625 !is_zero_ether_addr(dev
->member_in_go_dev
)) {
3626 p2p_dbg(p2p
, "Peer " MACSTR
" did not acknowledge request - try to use device discoverability through its GO",
3627 MAC2STR(dev
->info
.p2p_device_addr
));
3628 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3629 p2p_send_dev_disc_req(p2p
, dev
);
3634 * Use P2P find, if needed, to find the other device from its listen
3637 p2p_set_state(p2p
, P2P_CONNECT
);
3638 timeout
= success
? 500000 : 100000;
3639 if (!success
&& p2p
->go_neg_peer
&&
3640 (p2p
->go_neg_peer
->flags
& P2P_DEV_PEER_WAITING_RESPONSE
)) {
3643 * Peer is expected to wait our response and we will skip the
3644 * listen phase. Add some randomness to the wait time here to
3645 * make it less likely to hit cases where we could end up in
3646 * sync with peer not listening.
3648 if (os_get_random((u8
*) &r
, sizeof(r
)) < 0)
3650 timeout
+= r
% 100000;
3652 p2p_set_timeout(p2p
, 0, timeout
);
3656 static void p2p_go_neg_resp_cb(struct p2p_data
*p2p
, int success
)
3658 p2p_dbg(p2p
, "GO Negotiation Response TX callback: success=%d",
3660 if (!p2p
->go_neg_peer
&& p2p
->state
== P2P_PROVISIONING
) {
3661 p2p_dbg(p2p
, "Ignore TX callback event - GO Negotiation is not running anymore");
3664 p2p_set_state(p2p
, P2P_CONNECT
);
3665 p2p_set_timeout(p2p
, 0, 500000);
3669 static void p2p_go_neg_resp_failure_cb(struct p2p_data
*p2p
, int success
,
3672 p2p_dbg(p2p
, "GO Negotiation Response (failure) TX callback: success=%d", success
);
3673 if (p2p
->go_neg_peer
&& p2p
->go_neg_peer
->status
!= P2P_SC_SUCCESS
) {
3674 p2p_go_neg_failed(p2p
, p2p
->go_neg_peer
->status
);
3679 struct p2p_device
*dev
;
3680 dev
= p2p_get_device(p2p
, addr
);
3682 dev
->status
== P2P_SC_FAIL_INFO_CURRENTLY_UNAVAILABLE
)
3683 dev
->flags
|= P2P_DEV_PEER_WAITING_RESPONSE
;
3686 if (p2p
->state
== P2P_SEARCH
|| p2p
->state
== P2P_SD_DURING_FIND
)
3687 p2p_continue_find(p2p
);
3691 static void p2p_go_neg_conf_cb(struct p2p_data
*p2p
,
3692 enum p2p_send_action_result result
)
3694 struct p2p_device
*dev
;
3696 p2p_dbg(p2p
, "GO Negotiation Confirm TX callback: result=%d", result
);
3697 if (result
== P2P_SEND_ACTION_FAILED
) {
3698 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3699 p2p_go_neg_failed(p2p
, -1);
3703 dev
= p2p
->go_neg_peer
;
3705 if (result
== P2P_SEND_ACTION_NO_ACK
) {
3707 * Retry GO Negotiation Confirmation
3708 * P2P_GO_NEG_CNF_MAX_RETRY_COUNT times if we did not receive
3709 * ACK for confirmation.
3711 if (dev
&& dev
->go_neg_conf
&&
3712 dev
->go_neg_conf_sent
<= P2P_GO_NEG_CNF_MAX_RETRY_COUNT
) {
3713 p2p_dbg(p2p
, "GO Negotiation Confirm retry %d",
3714 dev
->go_neg_conf_sent
);
3715 p2p
->pending_action_state
= P2P_PENDING_GO_NEG_CONFIRM
;
3716 if (p2p_send_action(p2p
, dev
->go_neg_conf_freq
,
3717 dev
->info
.p2p_device_addr
,
3719 dev
->info
.p2p_device_addr
,
3720 wpabuf_head(dev
->go_neg_conf
),
3721 wpabuf_len(dev
->go_neg_conf
), 0) >=
3723 dev
->go_neg_conf_sent
++;
3726 p2p_dbg(p2p
, "Failed to re-send Action frame");
3729 * Continue with the assumption that the first attempt
3730 * went through and just the ACK frame was lost.
3735 * It looks like the TX status for GO Negotiation Confirm is
3736 * often showing failure even when the peer has actually
3737 * received the frame. Since the peer may change channels
3738 * immediately after having received the frame, we may not see
3739 * an Ack for retries, so just dropping a single frame may
3740 * trigger this. To allow the group formation to succeed if the
3741 * peer did indeed receive the frame, continue regardless of
3744 p2p_dbg(p2p
, "Assume GO Negotiation Confirm TX was actually received by the peer even though Ack was not reported");
3747 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3752 p2p_go_complete(p2p
, dev
);
3756 void p2p_send_action_cb(struct p2p_data
*p2p
, unsigned int freq
, const u8
*dst
,
3757 const u8
*src
, const u8
*bssid
,
3758 enum p2p_send_action_result result
)
3760 enum p2p_pending_action_state state
;
3763 p2p_dbg(p2p
, "Action frame TX callback (state=%d freq=%u dst=" MACSTR
3764 " src=" MACSTR
" bssid=" MACSTR
" result=%d p2p_state=%s)",
3765 p2p
->pending_action_state
, freq
, MAC2STR(dst
), MAC2STR(src
),
3766 MAC2STR(bssid
), result
, p2p_state_txt(p2p
->state
));
3767 success
= result
== P2P_SEND_ACTION_SUCCESS
;
3768 state
= p2p
->pending_action_state
;
3769 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
3771 case P2P_NO_PENDING_ACTION
:
3772 if (p2p
->send_action_in_progress
) {
3773 p2p
->send_action_in_progress
= 0;
3774 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3776 p2p_check_after_scan_tx_continuation(p2p
);
3778 case P2P_PENDING_GO_NEG_REQUEST
:
3779 p2p_go_neg_req_cb(p2p
, success
);
3781 case P2P_PENDING_GO_NEG_RESPONSE
:
3782 p2p_go_neg_resp_cb(p2p
, success
);
3784 case P2P_PENDING_GO_NEG_RESPONSE_FAILURE
:
3785 p2p_go_neg_resp_failure_cb(p2p
, success
, dst
);
3787 case P2P_PENDING_GO_NEG_CONFIRM
:
3788 p2p_go_neg_conf_cb(p2p
, result
);
3790 case P2P_PENDING_SD
:
3791 p2p_sd_cb(p2p
, success
);
3793 case P2P_PENDING_PD
:
3794 p2p_prov_disc_cb(p2p
, success
);
3796 case P2P_PENDING_PD_RESPONSE
:
3797 p2p_prov_disc_resp_cb(p2p
, success
);
3799 case P2P_PENDING_INVITATION_REQUEST
:
3800 p2p_invitation_req_cb(p2p
, success
);
3802 case P2P_PENDING_INVITATION_RESPONSE
:
3803 p2p_invitation_resp_cb(p2p
, success
);
3804 if (p2p
->inv_status
!= P2P_SC_SUCCESS
)
3805 p2p_check_after_scan_tx_continuation(p2p
);
3807 case P2P_PENDING_DEV_DISC_REQUEST
:
3808 p2p_dev_disc_req_cb(p2p
, success
);
3810 case P2P_PENDING_DEV_DISC_RESPONSE
:
3811 p2p_dev_disc_resp_cb(p2p
, success
);
3813 case P2P_PENDING_GO_DISC_REQ
:
3814 p2p_go_disc_req_cb(p2p
, success
);
3818 p2p
->after_scan_tx_in_progress
= 0;
3822 void p2p_listen_cb(struct p2p_data
*p2p
, unsigned int freq
,
3823 unsigned int duration
)
3825 if (freq
== p2p
->pending_client_disc_freq
) {
3826 p2p_dbg(p2p
, "Client discoverability remain-awake completed");
3827 p2p
->pending_client_disc_freq
= 0;
3831 if (freq
!= p2p
->pending_listen_freq
) {
3832 p2p_dbg(p2p
, "Unexpected listen callback for freq=%u duration=%u (pending_listen_freq=%u)",
3833 freq
, duration
, p2p
->pending_listen_freq
);
3837 p2p_dbg(p2p
, "Starting Listen timeout(%u,%u) on freq=%u based on callback",
3838 p2p
->pending_listen_sec
, p2p
->pending_listen_usec
,
3839 p2p
->pending_listen_freq
);
3841 p2p
->drv_in_listen
= freq
;
3842 if (p2p
->pending_listen_sec
|| p2p
->pending_listen_usec
) {
3844 * Add 20 msec extra wait to avoid race condition with driver
3845 * remain-on-channel end event, i.e., give driver more time to
3846 * complete the operation before our timeout expires.
3848 p2p_set_timeout(p2p
, p2p
->pending_listen_sec
,
3849 p2p
->pending_listen_usec
+ 20000);
3852 p2p
->pending_listen_freq
= 0;
3856 int p2p_listen_end(struct p2p_data
*p2p
, unsigned int freq
)
3858 p2p_dbg(p2p
, "Driver ended Listen state (freq=%u)", freq
);
3859 p2p
->drv_in_listen
= 0;
3861 return 0; /* Internal timeout will trigger the next step */
3863 if (p2p
->state
== P2P_CONNECT_LISTEN
&& p2p
->go_neg_peer
) {
3864 if (p2p
->go_neg_peer
->connect_reqs
>= 120) {
3865 p2p_dbg(p2p
, "Timeout on sending GO Negotiation Request without getting response");
3866 p2p_go_neg_failed(p2p
, -1);
3870 p2p_set_state(p2p
, P2P_CONNECT
);
3871 p2p_connect_send(p2p
, p2p
->go_neg_peer
);
3873 } else if (p2p
->state
== P2P_SEARCH
) {
3874 if (p2p
->p2p_scan_running
) {
3876 * Search is already in progress. This can happen if
3877 * an Action frame RX is reported immediately after
3878 * the end of a remain-on-channel operation and the
3879 * response frame to that is sent using an offchannel
3880 * operation while in p2p_find. Avoid an attempt to
3881 * restart a scan here.
3883 p2p_dbg(p2p
, "p2p_scan already in progress - do not try to start a new one");
3886 if (p2p
->pending_listen_freq
) {
3888 * Better wait a bit if the driver is unable to start
3889 * offchannel operation for some reason. p2p_search()
3890 * will be started from internal timeout.
3892 p2p_dbg(p2p
, "Listen operation did not seem to start - delay search phase to avoid busy loop");
3893 p2p_set_timeout(p2p
, 0, 100000);
3896 if (p2p
->search_delay
) {
3897 p2p_dbg(p2p
, "Delay search operation by %u ms",
3899 p2p_set_timeout(p2p
, p2p
->search_delay
/ 1000,
3900 (p2p
->search_delay
% 1000) * 1000);
3911 static void p2p_timeout_connect(struct p2p_data
*p2p
)
3913 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3914 if (p2p
->go_neg_peer
&&
3915 (p2p
->go_neg_peer
->flags
& P2P_DEV_WAIT_GO_NEG_CONFIRM
)) {
3916 p2p_dbg(p2p
, "Wait for GO Negotiation Confirm timed out - assume GO Negotiation failed");
3917 p2p_go_neg_failed(p2p
, -1);
3920 if (p2p
->go_neg_peer
&&
3921 (p2p
->go_neg_peer
->flags
& P2P_DEV_PEER_WAITING_RESPONSE
) &&
3922 p2p
->go_neg_peer
->connect_reqs
< 120) {
3923 p2p_dbg(p2p
, "Peer expected to wait our response - skip listen");
3924 p2p_connect_send(p2p
, p2p
->go_neg_peer
);
3927 if (p2p
->go_neg_peer
&& p2p
->go_neg_peer
->oob_go_neg_freq
> 0) {
3928 p2p_dbg(p2p
, "Skip connect-listen since GO Neg channel known (OOB)");
3929 p2p_set_state(p2p
, P2P_CONNECT_LISTEN
);
3930 p2p_set_timeout(p2p
, 0, 30000);
3933 p2p_set_state(p2p
, P2P_CONNECT_LISTEN
);
3934 p2p_listen_in_find(p2p
, 0);
3938 static void p2p_timeout_connect_listen(struct p2p_data
*p2p
)
3940 if (p2p
->go_neg_peer
) {
3941 if (p2p
->drv_in_listen
) {
3942 p2p_dbg(p2p
, "Driver is still in Listen state; wait for it to complete");
3946 if (p2p
->go_neg_peer
->connect_reqs
>= 120) {
3947 p2p_dbg(p2p
, "Timeout on sending GO Negotiation Request without getting response");
3948 p2p_go_neg_failed(p2p
, -1);
3952 p2p_set_state(p2p
, P2P_CONNECT
);
3953 p2p_connect_send(p2p
, p2p
->go_neg_peer
);
3955 p2p_set_state(p2p
, P2P_IDLE
);
3959 static void p2p_timeout_wait_peer_connect(struct p2p_data
*p2p
)
3961 p2p_set_state(p2p
, P2P_WAIT_PEER_IDLE
);
3963 if (p2p
->cfg
->is_concurrent_session_active
&&
3964 p2p
->cfg
->is_concurrent_session_active(p2p
->cfg
->cb_ctx
))
3965 p2p_set_timeout(p2p
, 0, 500000);
3967 p2p_set_timeout(p2p
, 0, 200000);
3971 static void p2p_timeout_wait_peer_idle(struct p2p_data
*p2p
)
3973 struct p2p_device
*dev
= p2p
->go_neg_peer
;
3976 p2p_dbg(p2p
, "Unknown GO Neg peer - stop GO Neg wait");
3980 p2p_dbg(p2p
, "Go to Listen state while waiting for the peer to become ready for GO Negotiation");
3981 p2p_set_state(p2p
, P2P_WAIT_PEER_CONNECT
);
3982 p2p_listen_in_find(p2p
, 0);
3986 static void p2p_timeout_sd_during_find(struct p2p_data
*p2p
)
3988 p2p_dbg(p2p
, "Service Discovery Query timeout");
3990 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
3991 p2p
->sd_peer
= NULL
;
3993 p2p_continue_find(p2p
);
3997 static void p2p_timeout_prov_disc_during_find(struct p2p_data
*p2p
)
3999 p2p_dbg(p2p
, "Provision Discovery Request timeout");
4000 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
4001 p2p_continue_find(p2p
);
4005 static void p2p_timeout_prov_disc_req(struct p2p_data
*p2p
)
4010 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
4013 * For user initiated PD requests that we have not gotten any responses
4014 * for while in IDLE state, we retry them a couple of times before
4017 if (!p2p
->user_initiated_pd
)
4020 p2p_dbg(p2p
, "User initiated Provision Discovery Request timeout");
4022 if (p2p
->pd_retries
) {
4026 struct p2p_device
*dev
;
4029 dl_list_for_each(dev
, &p2p
->devices
, struct p2p_device
, list
) {
4030 if (os_memcmp(p2p
->pending_pd_devaddr
,
4031 dev
->info
.p2p_device_addr
, ETH_ALEN
) != 0)
4033 if (dev
->req_config_methods
&&
4034 (dev
->flags
& P2P_DEV_PD_FOR_JOIN
))
4038 if (p2p
->p2ps_prov
) {
4039 adv_id
= p2p
->p2ps_prov
->adv_id
;
4040 adv_mac
= p2p
->p2ps_prov
->adv_mac
;
4043 if (p2p
->cfg
->prov_disc_fail
)
4044 p2p
->cfg
->prov_disc_fail(p2p
->cfg
->cb_ctx
,
4045 p2p
->pending_pd_devaddr
,
4047 P2P_PROV_DISC_TIMEOUT_JOIN
:
4048 P2P_PROV_DISC_TIMEOUT
,
4049 adv_id
, adv_mac
, NULL
);
4050 p2p_reset_pending_pd(p2p
);
4055 static void p2p_timeout_invite(struct p2p_data
*p2p
)
4057 p2p
->cfg
->send_action_done(p2p
->cfg
->cb_ctx
);
4058 p2p_set_state(p2p
, P2P_INVITE_LISTEN
);
4059 if (p2p
->inv_role
== P2P_INVITE_ROLE_ACTIVE_GO
) {
4061 * Better remain on operating channel instead of listen channel
4062 * when running a group.
4064 p2p_dbg(p2p
, "Inviting in active GO role - wait on operating channel");
4065 p2p_set_timeout(p2p
, 0, 100000);
4068 p2p_listen_in_find(p2p
, 0);
4072 static void p2p_timeout_invite_listen(struct p2p_data
*p2p
)
4074 if (p2p
->invite_peer
&& p2p
->invite_peer
->invitation_reqs
< 100) {
4075 p2p_set_state(p2p
, P2P_INVITE
);
4076 p2p_invite_send(p2p
, p2p
->invite_peer
,
4077 p2p
->invite_go_dev_addr
, p2p
->invite_dev_pw_id
);
4079 if (p2p
->invite_peer
) {
4080 p2p_dbg(p2p
, "Invitation Request retry limit reached");
4081 if (p2p
->cfg
->invitation_result
)
4082 p2p
->cfg
->invitation_result(
4083 p2p
->cfg
->cb_ctx
, -1, NULL
, NULL
,
4084 p2p
->invite_peer
->info
.p2p_device_addr
,
4087 p2p_set_state(p2p
, P2P_IDLE
);
4092 static void p2p_state_timeout(void *eloop_ctx
, void *timeout_ctx
)
4094 struct p2p_data
*p2p
= eloop_ctx
;
4096 p2p_dbg(p2p
, "Timeout (state=%s)", p2p_state_txt(p2p
->state
));
4099 if (p2p
->drv_in_listen
) {
4100 p2p_dbg(p2p
, "Driver is still in listen state - stop it");
4101 p2p
->cfg
->stop_listen(p2p
->cfg
->cb_ctx
);
4104 switch (p2p
->state
) {
4106 /* Check if we timed out waiting for PD req */
4107 if (p2p
->pending_action_state
== P2P_PENDING_PD
)
4108 p2p_timeout_prov_disc_req(p2p
);
4111 /* Check if we timed out waiting for PD req */
4112 if (p2p
->pending_action_state
== P2P_PENDING_PD
)
4113 p2p_timeout_prov_disc_req(p2p
);
4114 if (p2p
->search_delay
&& !p2p
->in_search_delay
) {
4115 p2p_dbg(p2p
, "Delay search operation by %u ms",
4117 p2p
->in_search_delay
= 1;
4118 p2p_set_timeout(p2p
, p2p
->search_delay
/ 1000,
4119 (p2p
->search_delay
% 1000) * 1000);
4122 p2p
->in_search_delay
= 0;
4126 p2p_timeout_connect(p2p
);
4128 case P2P_CONNECT_LISTEN
:
4129 p2p_timeout_connect_listen(p2p
);
4133 case P2P_LISTEN_ONLY
:
4134 /* Check if we timed out waiting for PD req */
4135 if (p2p
->pending_action_state
== P2P_PENDING_PD
)
4136 p2p_timeout_prov_disc_req(p2p
);
4138 if (p2p
->ext_listen_only
) {
4139 p2p_dbg(p2p
, "Extended Listen Timing - Listen State completed");
4140 p2p
->ext_listen_only
= 0;
4141 p2p_set_state(p2p
, P2P_IDLE
);
4144 case P2P_WAIT_PEER_CONNECT
:
4145 p2p_timeout_wait_peer_connect(p2p
);
4147 case P2P_WAIT_PEER_IDLE
:
4148 p2p_timeout_wait_peer_idle(p2p
);
4150 case P2P_SD_DURING_FIND
:
4151 p2p_timeout_sd_during_find(p2p
);
4153 case P2P_PROVISIONING
:
4155 case P2P_PD_DURING_FIND
:
4156 p2p_timeout_prov_disc_during_find(p2p
);
4159 p2p_timeout_invite(p2p
);
4161 case P2P_INVITE_LISTEN
:
4162 p2p_timeout_invite_listen(p2p
);
4168 int p2p_reject(struct p2p_data
*p2p
, const u8
*peer_addr
)
4170 struct p2p_device
*dev
;
4172 dev
= p2p_get_device(p2p
, peer_addr
);
4173 p2p_dbg(p2p
, "Local request to reject connection attempts by peer "
4174 MACSTR
, MAC2STR(peer_addr
));
4176 p2p_dbg(p2p
, "Peer " MACSTR
" unknown", MAC2STR(peer_addr
));
4179 dev
->status
= P2P_SC_FAIL_REJECTED_BY_USER
;
4180 dev
->flags
|= P2P_DEV_USER_REJECTED
;
4185 const char * p2p_wps_method_text(enum p2p_wps_method method
)
4190 case WPS_PIN_DISPLAY
:
4192 case WPS_PIN_KEYPAD
:
4206 static const char * p2p_go_state_text(enum p2p_go_state go_state
)
4221 const struct p2p_peer_info
* p2p_get_peer_info(struct p2p_data
*p2p
,
4222 const u8
*addr
, int next
)
4224 struct p2p_device
*dev
;
4227 dev
= p2p_get_device(p2p
, addr
);
4229 dev
= dl_list_first(&p2p
->devices
, struct p2p_device
, list
);
4232 dev
= dl_list_first(&dev
->list
, struct p2p_device
, list
);
4233 if (&dev
->list
== &p2p
->devices
)
4244 int p2p_get_peer_info_txt(const struct p2p_peer_info
*info
,
4245 char *buf
, size_t buflen
)
4247 struct p2p_device
*dev
;
4250 struct os_reltime now
;
4255 dev
= (struct p2p_device
*) (((u8
*) info
) -
4256 offsetof(struct p2p_device
, info
));
4261 os_get_reltime(&now
);
4262 res
= os_snprintf(pos
, end
- pos
,
4266 "interface_addr=" MACSTR
"\n"
4267 "member_in_go_dev=" MACSTR
"\n"
4268 "member_in_go_iface=" MACSTR
"\n"
4269 "go_neg_req_sent=%d\n"
4272 "intended_addr=" MACSTR
"\n"
4275 "req_config_methods=0x%x\n"
4276 "flags=%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n"
4278 "invitation_reqs=%u\n",
4279 (int) (now
.sec
- dev
->last_seen
.sec
),
4281 p2p_wps_method_text(dev
->wps_method
),
4282 MAC2STR(dev
->interface_addr
),
4283 MAC2STR(dev
->member_in_go_dev
),
4284 MAC2STR(dev
->member_in_go_iface
),
4285 dev
->go_neg_req_sent
,
4286 p2p_go_state_text(dev
->go_state
),
4288 MAC2STR(dev
->intended_addr
),
4289 dev
->country
[0] ? dev
->country
[0] : '_',
4290 dev
->country
[1] ? dev
->country
[1] : '_',
4292 dev
->req_config_methods
,
4293 dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
?
4294 "[PROBE_REQ_ONLY]" : "",
4295 dev
->flags
& P2P_DEV_REPORTED
? "[REPORTED]" : "",
4296 dev
->flags
& P2P_DEV_NOT_YET_READY
?
4297 "[NOT_YET_READY]" : "",
4298 dev
->flags
& P2P_DEV_PD_PEER_DISPLAY
?
4299 "[PD_PEER_DISPLAY]" : "",
4300 dev
->flags
& P2P_DEV_PD_PEER_KEYPAD
?
4301 "[PD_PEER_KEYPAD]" : "",
4302 dev
->flags
& P2P_DEV_PD_PEER_P2PS
?
4303 "[PD_PEER_P2PS]" : "",
4304 dev
->flags
& P2P_DEV_USER_REJECTED
?
4305 "[USER_REJECTED]" : "",
4306 dev
->flags
& P2P_DEV_PEER_WAITING_RESPONSE
?
4307 "[PEER_WAITING_RESPONSE]" : "",
4308 dev
->flags
& P2P_DEV_PREFER_PERSISTENT_GROUP
?
4309 "[PREFER_PERSISTENT_GROUP]" : "",
4310 dev
->flags
& P2P_DEV_WAIT_GO_NEG_RESPONSE
?
4311 "[WAIT_GO_NEG_RESPONSE]" : "",
4312 dev
->flags
& P2P_DEV_WAIT_GO_NEG_CONFIRM
?
4313 "[WAIT_GO_NEG_CONFIRM]" : "",
4314 dev
->flags
& P2P_DEV_GROUP_CLIENT_ONLY
?
4315 "[GROUP_CLIENT_ONLY]" : "",
4316 dev
->flags
& P2P_DEV_FORCE_FREQ
?
4317 "[FORCE_FREQ]" : "",
4318 dev
->flags
& P2P_DEV_PD_FOR_JOIN
?
4319 "[PD_FOR_JOIN]" : "",
4320 dev
->flags
& P2P_DEV_LAST_SEEN_AS_GROUP_CLIENT
?
4321 "[LAST_SEEN_AS_GROUP_CLIENT]" : "",
4323 dev
->invitation_reqs
);
4324 if (os_snprintf_error(end
- pos
, res
))
4328 if (dev
->ext_listen_period
) {
4329 res
= os_snprintf(pos
, end
- pos
,
4330 "ext_listen_period=%u\n"
4331 "ext_listen_interval=%u\n",
4332 dev
->ext_listen_period
,
4333 dev
->ext_listen_interval
);
4334 if (os_snprintf_error(end
- pos
, res
))
4339 if (dev
->oper_ssid_len
) {
4340 res
= os_snprintf(pos
, end
- pos
,
4342 wpa_ssid_txt(dev
->oper_ssid
,
4343 dev
->oper_ssid_len
));
4344 if (os_snprintf_error(end
- pos
, res
))
4349 #ifdef CONFIG_WIFI_DISPLAY
4350 if (dev
->info
.wfd_subelems
) {
4351 res
= os_snprintf(pos
, end
- pos
, "wfd_subelems=");
4352 if (os_snprintf_error(end
- pos
, res
))
4356 pos
+= wpa_snprintf_hex(pos
, end
- pos
,
4357 wpabuf_head(dev
->info
.wfd_subelems
),
4358 wpabuf_len(dev
->info
.wfd_subelems
));
4360 res
= os_snprintf(pos
, end
- pos
, "\n");
4361 if (os_snprintf_error(end
- pos
, res
))
4365 #endif /* CONFIG_WIFI_DISPLAY */
4371 int p2p_peer_known(struct p2p_data
*p2p
, const u8
*addr
)
4373 return p2p_get_device(p2p
, addr
) != NULL
;
4377 void p2p_set_client_discoverability(struct p2p_data
*p2p
, int enabled
)
4380 p2p_dbg(p2p
, "Client discoverability enabled");
4381 p2p
->dev_capab
|= P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
4383 p2p_dbg(p2p
, "Client discoverability disabled");
4384 p2p
->dev_capab
&= ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
;
4389 static struct wpabuf
* p2p_build_presence_req(u32 duration1
, u32 interval1
,
4390 u32 duration2
, u32 interval2
)
4393 struct p2p_noa_desc desc1
, desc2
, *ptr1
= NULL
, *ptr2
= NULL
;
4396 req
= wpabuf_alloc(100);
4400 if (duration1
|| interval1
) {
4401 os_memset(&desc1
, 0, sizeof(desc1
));
4402 desc1
.count_type
= 1;
4403 desc1
.duration
= duration1
;
4404 desc1
.interval
= interval1
;
4407 if (duration2
|| interval2
) {
4408 os_memset(&desc2
, 0, sizeof(desc2
));
4409 desc2
.count_type
= 2;
4410 desc2
.duration
= duration2
;
4411 desc2
.interval
= interval2
;
4416 p2p_buf_add_action_hdr(req
, P2P_PRESENCE_REQ
, 1);
4417 len
= p2p_buf_add_ie_hdr(req
);
4418 p2p_buf_add_noa(req
, 0, 0, 0, ptr1
, ptr2
);
4419 p2p_buf_update_ie_hdr(req
, len
);
4425 int p2p_presence_req(struct p2p_data
*p2p
, const u8
*go_interface_addr
,
4426 const u8
*own_interface_addr
, unsigned int freq
,
4427 u32 duration1
, u32 interval1
, u32 duration2
,
4432 p2p_dbg(p2p
, "Send Presence Request to GO " MACSTR
4433 " (own interface " MACSTR
") freq=%u dur1=%u int1=%u "
4435 MAC2STR(go_interface_addr
), MAC2STR(own_interface_addr
),
4436 freq
, duration1
, interval1
, duration2
, interval2
);
4438 req
= p2p_build_presence_req(duration1
, interval1
, duration2
,
4443 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
4444 if (p2p_send_action(p2p
, freq
, go_interface_addr
, own_interface_addr
,
4446 wpabuf_head(req
), wpabuf_len(req
), 200) < 0) {
4447 p2p_dbg(p2p
, "Failed to send Action frame");
4455 static struct wpabuf
* p2p_build_presence_resp(u8 status
, const u8
*noa
,
4456 size_t noa_len
, u8 dialog_token
)
4458 struct wpabuf
*resp
;
4461 resp
= wpabuf_alloc(100 + noa_len
);
4465 p2p_buf_add_action_hdr(resp
, P2P_PRESENCE_RESP
, dialog_token
);
4466 len
= p2p_buf_add_ie_hdr(resp
);
4467 p2p_buf_add_status(resp
, status
);
4469 wpabuf_put_u8(resp
, P2P_ATTR_NOTICE_OF_ABSENCE
);
4470 wpabuf_put_le16(resp
, noa_len
);
4471 wpabuf_put_data(resp
, noa
, noa_len
);
4473 p2p_buf_add_noa(resp
, 0, 0, 0, NULL
, NULL
);
4474 p2p_buf_update_ie_hdr(resp
, len
);
4480 static void p2p_process_presence_req(struct p2p_data
*p2p
, const u8
*da
,
4481 const u8
*sa
, const u8
*data
, size_t len
,
4484 struct p2p_message msg
;
4486 struct wpabuf
*resp
;
4488 struct p2p_group
*group
= NULL
;
4493 p2p_dbg(p2p
, "Received P2P Action - P2P Presence Request");
4495 for (g
= 0; g
< p2p
->num_groups
; g
++) {
4496 if (os_memcmp(da
, p2p_group_get_interface_addr(p2p
->groups
[g
]),
4498 group
= p2p
->groups
[g
];
4502 if (group
== NULL
) {
4503 p2p_dbg(p2p
, "Ignore P2P Presence Request for unknown group "
4504 MACSTR
, MAC2STR(da
));
4508 if (p2p_parse(data
, len
, &msg
) < 0) {
4509 p2p_dbg(p2p
, "Failed to parse P2P Presence Request");
4510 status
= P2P_SC_FAIL_INVALID_PARAMS
;
4515 if (msg
.noa
== NULL
) {
4516 p2p_dbg(p2p
, "No NoA attribute in P2P Presence Request");
4517 status
= P2P_SC_FAIL_INVALID_PARAMS
;
4521 status
= p2p_group_presence_req(group
, sa
, msg
.noa
, msg
.noa_len
);
4524 if (p2p
->cfg
->get_noa
)
4525 noa_len
= p2p
->cfg
->get_noa(p2p
->cfg
->cb_ctx
, da
, noa
,
4529 resp
= p2p_build_presence_resp(status
, noa_len
> 0 ? noa
: NULL
,
4530 noa_len
> 0 ? noa_len
: 0,
4533 p2p_parse_free(&msg
);
4537 p2p
->pending_action_state
= P2P_NO_PENDING_ACTION
;
4538 if (p2p_send_action(p2p
, rx_freq
, sa
, da
, da
,
4539 wpabuf_head(resp
), wpabuf_len(resp
), 200) < 0) {
4540 p2p_dbg(p2p
, "Failed to send Action frame");
4546 static void p2p_process_presence_resp(struct p2p_data
*p2p
, const u8
*da
,
4547 const u8
*sa
, const u8
*data
, size_t len
)
4549 struct p2p_message msg
;
4551 p2p_dbg(p2p
, "Received P2P Action - P2P Presence Response");
4553 if (p2p_parse(data
, len
, &msg
) < 0) {
4554 p2p_dbg(p2p
, "Failed to parse P2P Presence Response");
4558 if (msg
.status
== NULL
|| msg
.noa
== NULL
) {
4559 p2p_dbg(p2p
, "No Status or NoA attribute in P2P Presence Response");
4560 p2p_parse_free(&msg
);
4564 if (p2p
->cfg
->presence_resp
) {
4565 p2p
->cfg
->presence_resp(p2p
->cfg
->cb_ctx
, sa
, *msg
.status
,
4566 msg
.noa
, msg
.noa_len
);
4570 p2p_dbg(p2p
, "P2P Presence Request was rejected: status %u",
4572 p2p_parse_free(&msg
);
4576 p2p_dbg(p2p
, "P2P Presence Request was accepted");
4577 wpa_hexdump(MSG_DEBUG
, "P2P: P2P Presence Response - NoA",
4578 msg
.noa
, msg
.noa_len
);
4579 /* TODO: process NoA */
4580 p2p_parse_free(&msg
);
4584 static void p2p_ext_listen_timeout(void *eloop_ctx
, void *timeout_ctx
)
4586 struct p2p_data
*p2p
= eloop_ctx
;
4588 if (p2p
->ext_listen_interval
) {
4589 /* Schedule next extended listen timeout */
4590 eloop_register_timeout(p2p
->ext_listen_interval_sec
,
4591 p2p
->ext_listen_interval_usec
,
4592 p2p_ext_listen_timeout
, p2p
, NULL
);
4595 if ((p2p
->cfg
->is_p2p_in_progress
&&
4596 p2p
->cfg
->is_p2p_in_progress(p2p
->cfg
->cb_ctx
)) ||
4597 (p2p
->pending_action_state
== P2P_PENDING_PD
&&
4598 p2p
->pd_retries
> 0)) {
4599 p2p_dbg(p2p
, "Operation in progress - skip Extended Listen timeout (%s)",
4600 p2p_state_txt(p2p
->state
));
4604 if (p2p
->state
== P2P_LISTEN_ONLY
&& p2p
->ext_listen_only
) {
4606 * This should not really happen, but it looks like the Listen
4607 * command may fail is something else (e.g., a scan) was
4608 * running at an inconvenient time. As a workaround, allow new
4609 * Extended Listen operation to be started.
4611 p2p_dbg(p2p
, "Previous Extended Listen operation had not been completed - try again");
4612 p2p
->ext_listen_only
= 0;
4613 p2p_set_state(p2p
, P2P_IDLE
);
4616 if (p2p
->state
!= P2P_IDLE
) {
4617 p2p_dbg(p2p
, "Skip Extended Listen timeout in active state (%s)", p2p_state_txt(p2p
->state
));
4621 p2p_dbg(p2p
, "Extended Listen timeout");
4622 p2p
->ext_listen_only
= 1;
4623 if (p2p_listen(p2p
, p2p
->ext_listen_period
) < 0) {
4624 p2p_dbg(p2p
, "Failed to start Listen state for Extended Listen Timing");
4625 p2p
->ext_listen_only
= 0;
4630 int p2p_ext_listen(struct p2p_data
*p2p
, unsigned int period
,
4631 unsigned int interval
)
4633 if (period
> 65535 || interval
> 65535 || period
> interval
||
4634 (period
== 0 && interval
> 0) || (period
> 0 && interval
== 0)) {
4635 p2p_dbg(p2p
, "Invalid Extended Listen Timing request: period=%u interval=%u",
4640 eloop_cancel_timeout(p2p_ext_listen_timeout
, p2p
, NULL
);
4642 if (interval
== 0) {
4643 p2p_dbg(p2p
, "Disabling Extended Listen Timing");
4644 p2p
->ext_listen_period
= 0;
4645 p2p
->ext_listen_interval
= 0;
4649 p2p_dbg(p2p
, "Enabling Extended Listen Timing: period %u msec, interval %u msec",
4651 p2p
->ext_listen_period
= period
;
4652 p2p
->ext_listen_interval
= interval
;
4653 p2p
->ext_listen_interval_sec
= interval
/ 1000;
4654 p2p
->ext_listen_interval_usec
= (interval
% 1000) * 1000;
4656 eloop_register_timeout(p2p
->ext_listen_interval_sec
,
4657 p2p
->ext_listen_interval_usec
,
4658 p2p_ext_listen_timeout
, p2p
, NULL
);
4664 void p2p_deauth_notif(struct p2p_data
*p2p
, const u8
*bssid
, u16 reason_code
,
4665 const u8
*ie
, size_t ie_len
)
4667 struct p2p_message msg
;
4669 if (bssid
== NULL
|| ie
== NULL
)
4672 os_memset(&msg
, 0, sizeof(msg
));
4673 if (p2p_parse_ies(ie
, ie_len
, &msg
))
4675 if (msg
.minor_reason_code
== NULL
) {
4676 p2p_parse_free(&msg
);
4680 p2p_dbg(p2p
, "Deauthentication notification BSSID " MACSTR
4681 " reason_code=%u minor_reason_code=%u",
4682 MAC2STR(bssid
), reason_code
, *msg
.minor_reason_code
);
4684 p2p_parse_free(&msg
);
4688 void p2p_disassoc_notif(struct p2p_data
*p2p
, const u8
*bssid
, u16 reason_code
,
4689 const u8
*ie
, size_t ie_len
)
4691 struct p2p_message msg
;
4693 if (bssid
== NULL
|| ie
== NULL
)
4696 os_memset(&msg
, 0, sizeof(msg
));
4697 if (p2p_parse_ies(ie
, ie_len
, &msg
))
4699 if (msg
.minor_reason_code
== NULL
) {
4700 p2p_parse_free(&msg
);
4704 p2p_dbg(p2p
, "Disassociation notification BSSID " MACSTR
4705 " reason_code=%u minor_reason_code=%u",
4706 MAC2STR(bssid
), reason_code
, *msg
.minor_reason_code
);
4708 p2p_parse_free(&msg
);
4712 void p2p_set_managed_oper(struct p2p_data
*p2p
, int enabled
)
4715 p2p_dbg(p2p
, "Managed P2P Device operations enabled");
4716 p2p
->dev_capab
|= P2P_DEV_CAPAB_INFRA_MANAGED
;
4718 p2p_dbg(p2p
, "Managed P2P Device operations disabled");
4719 p2p
->dev_capab
&= ~P2P_DEV_CAPAB_INFRA_MANAGED
;
4724 int p2p_config_get_random_social(struct p2p_config
*p2p
, u8
*op_class
,
4727 return p2p_channel_random_social(&p2p
->channels
, op_class
, op_channel
);
4731 int p2p_set_listen_channel(struct p2p_data
*p2p
, u8 reg_class
, u8 channel
,
4734 if (p2p_channel_to_freq(reg_class
, channel
) < 0)
4738 * Listen channel was set in configuration or set by control interface;
4739 * cannot override it.
4741 if (p2p
->cfg
->channel_forced
&& forced
== 0) {
4743 "Listen channel was previously configured - do not override based on optimization");
4747 p2p_dbg(p2p
, "Set Listen channel: reg_class %u channel %u",
4748 reg_class
, channel
);
4750 if (p2p
->state
== P2P_IDLE
) {
4751 p2p
->cfg
->reg_class
= reg_class
;
4752 p2p
->cfg
->channel
= channel
;
4753 p2p
->cfg
->channel_forced
= forced
;
4755 p2p_dbg(p2p
, "Defer setting listen channel");
4756 p2p
->pending_reg_class
= reg_class
;
4757 p2p
->pending_channel
= channel
;
4758 p2p
->pending_channel_forced
= forced
;
4765 u8
p2p_get_listen_channel(struct p2p_data
*p2p
)
4767 return p2p
->cfg
->channel
;
4771 int p2p_set_ssid_postfix(struct p2p_data
*p2p
, const u8
*postfix
, size_t len
)
4773 p2p_dbg(p2p
, "New SSID postfix: %s", wpa_ssid_txt(postfix
, len
));
4774 if (postfix
== NULL
) {
4775 p2p
->cfg
->ssid_postfix_len
= 0;
4778 if (len
> sizeof(p2p
->cfg
->ssid_postfix
))
4780 os_memcpy(p2p
->cfg
->ssid_postfix
, postfix
, len
);
4781 p2p
->cfg
->ssid_postfix_len
= len
;
4786 int p2p_set_oper_channel(struct p2p_data
*p2p
, u8 op_reg_class
, u8 op_channel
,
4789 if (p2p_channel_to_freq(op_reg_class
, op_channel
) < 0)
4792 p2p_dbg(p2p
, "Set Operating channel: reg_class %u channel %u",
4793 op_reg_class
, op_channel
);
4794 p2p
->cfg
->op_reg_class
= op_reg_class
;
4795 p2p
->cfg
->op_channel
= op_channel
;
4796 p2p
->cfg
->cfg_op_channel
= cfg_op_channel
;
4801 int p2p_set_pref_chan(struct p2p_data
*p2p
, unsigned int num_pref_chan
,
4802 const struct p2p_channel
*pref_chan
)
4804 struct p2p_channel
*n
;
4807 n
= os_malloc(num_pref_chan
* sizeof(struct p2p_channel
));
4810 os_memcpy(n
, pref_chan
,
4811 num_pref_chan
* sizeof(struct p2p_channel
));
4815 os_free(p2p
->cfg
->pref_chan
);
4816 p2p
->cfg
->pref_chan
= n
;
4817 p2p
->cfg
->num_pref_chan
= num_pref_chan
;
4823 int p2p_set_no_go_freq(struct p2p_data
*p2p
,
4824 const struct wpa_freq_range_list
*list
)
4826 struct wpa_freq_range
*tmp
;
4828 if (list
== NULL
|| list
->num
== 0) {
4829 os_free(p2p
->no_go_freq
.range
);
4830 p2p
->no_go_freq
.range
= NULL
;
4831 p2p
->no_go_freq
.num
= 0;
4835 tmp
= os_calloc(list
->num
, sizeof(struct wpa_freq_range
));
4838 os_memcpy(tmp
, list
->range
, list
->num
* sizeof(struct wpa_freq_range
));
4839 os_free(p2p
->no_go_freq
.range
);
4840 p2p
->no_go_freq
.range
= tmp
;
4841 p2p
->no_go_freq
.num
= list
->num
;
4842 p2p_dbg(p2p
, "Updated no GO chan list");
4848 int p2p_get_interface_addr(struct p2p_data
*p2p
, const u8
*dev_addr
,
4851 struct p2p_device
*dev
= p2p_get_device(p2p
, dev_addr
);
4852 if (dev
== NULL
|| is_zero_ether_addr(dev
->interface_addr
))
4854 os_memcpy(iface_addr
, dev
->interface_addr
, ETH_ALEN
);
4859 int p2p_get_dev_addr(struct p2p_data
*p2p
, const u8
*iface_addr
,
4862 struct p2p_device
*dev
= p2p_get_device_interface(p2p
, iface_addr
);
4865 os_memcpy(dev_addr
, dev
->info
.p2p_device_addr
, ETH_ALEN
);
4870 void p2p_set_peer_filter(struct p2p_data
*p2p
, const u8
*addr
)
4872 os_memcpy(p2p
->peer_filter
, addr
, ETH_ALEN
);
4873 if (is_zero_ether_addr(p2p
->peer_filter
))
4874 p2p_dbg(p2p
, "Disable peer filter");
4876 p2p_dbg(p2p
, "Enable peer filter for " MACSTR
,
4877 MAC2STR(p2p
->peer_filter
));
4881 void p2p_set_cross_connect(struct p2p_data
*p2p
, int enabled
)
4883 p2p_dbg(p2p
, "Cross connection %s", enabled
? "enabled" : "disabled");
4884 if (p2p
->cross_connect
== enabled
)
4886 p2p
->cross_connect
= enabled
;
4887 /* TODO: may need to tear down any action group where we are GO(?) */
4891 int p2p_get_oper_freq(struct p2p_data
*p2p
, const u8
*iface_addr
)
4893 struct p2p_device
*dev
= p2p_get_device_interface(p2p
, iface_addr
);
4896 if (dev
->oper_freq
<= 0)
4898 return dev
->oper_freq
;
4902 void p2p_set_intra_bss_dist(struct p2p_data
*p2p
, int enabled
)
4904 p2p_dbg(p2p
, "Intra BSS distribution %s",
4905 enabled
? "enabled" : "disabled");
4906 p2p
->cfg
->p2p_intra_bss
= enabled
;
4910 void p2p_update_channel_list(struct p2p_data
*p2p
,
4911 const struct p2p_channels
*chan
,
4912 const struct p2p_channels
*cli_chan
)
4914 p2p_dbg(p2p
, "Update channel list");
4915 os_memcpy(&p2p
->cfg
->channels
, chan
, sizeof(struct p2p_channels
));
4916 p2p_channels_dump(p2p
, "channels", &p2p
->cfg
->channels
);
4917 os_memcpy(&p2p
->cfg
->cli_channels
, cli_chan
,
4918 sizeof(struct p2p_channels
));
4919 p2p_channels_dump(p2p
, "cli_channels", &p2p
->cfg
->cli_channels
);
4923 int p2p_send_action(struct p2p_data
*p2p
, unsigned int freq
, const u8
*dst
,
4924 const u8
*src
, const u8
*bssid
, const u8
*buf
,
4925 size_t len
, unsigned int wait_time
)
4927 if (p2p
->p2p_scan_running
) {
4928 p2p_dbg(p2p
, "Delay Action frame TX until p2p_scan completes");
4929 if (p2p
->after_scan_tx
) {
4930 p2p_dbg(p2p
, "Dropped previous pending Action frame TX");
4931 os_free(p2p
->after_scan_tx
);
4933 p2p
->after_scan_tx
= os_malloc(sizeof(*p2p
->after_scan_tx
) +
4935 if (p2p
->after_scan_tx
== NULL
)
4937 p2p
->after_scan_tx
->freq
= freq
;
4938 os_memcpy(p2p
->after_scan_tx
->dst
, dst
, ETH_ALEN
);
4939 os_memcpy(p2p
->after_scan_tx
->src
, src
, ETH_ALEN
);
4940 os_memcpy(p2p
->after_scan_tx
->bssid
, bssid
, ETH_ALEN
);
4941 p2p
->after_scan_tx
->len
= len
;
4942 p2p
->after_scan_tx
->wait_time
= wait_time
;
4943 os_memcpy(p2p
->after_scan_tx
+ 1, buf
, len
);
4947 return p2p
->cfg
->send_action(p2p
->cfg
->cb_ctx
, freq
, dst
, src
, bssid
,
4948 buf
, len
, wait_time
);
4952 void p2p_set_best_channels(struct p2p_data
*p2p
, int freq_24
, int freq_5
,
4955 p2p_dbg(p2p
, "Best channel: 2.4 GHz: %d, 5 GHz: %d, overall: %d",
4956 freq_24
, freq_5
, freq_overall
);
4957 p2p
->best_freq_24
= freq_24
;
4958 p2p
->best_freq_5
= freq_5
;
4959 p2p
->best_freq_overall
= freq_overall
;
4963 void p2p_set_own_freq_preference(struct p2p_data
*p2p
, int freq
)
4965 p2p_dbg(p2p
, "Own frequency preference: %d MHz", freq
);
4966 p2p
->own_freq_preference
= freq
;
4970 const u8
* p2p_get_go_neg_peer(struct p2p_data
*p2p
)
4972 if (p2p
== NULL
|| p2p
->go_neg_peer
== NULL
)
4974 return p2p
->go_neg_peer
->info
.p2p_device_addr
;
4978 const struct p2p_peer_info
*
4979 p2p_get_peer_found(struct p2p_data
*p2p
, const u8
*addr
, int next
)
4981 struct p2p_device
*dev
;
4984 dev
= p2p_get_device(p2p
, addr
);
4989 if (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
)
4995 dev
= dl_list_first(&dev
->list
,
4998 if (!dev
|| &dev
->list
== &p2p
->devices
)
5000 } while (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
);
5003 dev
= dl_list_first(&p2p
->devices
, struct p2p_device
, list
);
5006 while (dev
->flags
& P2P_DEV_PROBE_REQ_ONLY
) {
5007 dev
= dl_list_first(&dev
->list
,
5010 if (!dev
|| &dev
->list
== &p2p
->devices
)
5019 int p2p_in_progress(struct p2p_data
*p2p
)
5023 if (p2p
->state
== P2P_SEARCH
)
5025 return p2p
->state
!= P2P_IDLE
&& p2p
->state
!= P2P_PROVISIONING
;
5029 void p2p_set_config_timeout(struct p2p_data
*p2p
, u8 go_timeout
,
5033 p2p
->go_timeout
= go_timeout
;
5034 p2p
->client_timeout
= client_timeout
;
5039 #ifdef CONFIG_WIFI_DISPLAY
5041 static void p2p_update_wfd_ie_groups(struct p2p_data
*p2p
)
5044 struct p2p_group
*group
;
5046 for (g
= 0; g
< p2p
->num_groups
; g
++) {
5047 group
= p2p
->groups
[g
];
5048 p2p_group_force_beacon_update_ies(group
);
5053 int p2p_set_wfd_ie_beacon(struct p2p_data
*p2p
, struct wpabuf
*ie
)
5055 wpabuf_free(p2p
->wfd_ie_beacon
);
5056 p2p
->wfd_ie_beacon
= ie
;
5057 p2p_update_wfd_ie_groups(p2p
);
5062 int p2p_set_wfd_ie_probe_req(struct p2p_data
*p2p
, struct wpabuf
*ie
)
5064 wpabuf_free(p2p
->wfd_ie_probe_req
);
5065 p2p
->wfd_ie_probe_req
= ie
;
5070 int p2p_set_wfd_ie_probe_resp(struct p2p_data
*p2p
, struct wpabuf
*ie
)
5072 wpabuf_free(p2p
->wfd_ie_probe_resp
);
5073 p2p
->wfd_ie_probe_resp
= ie
;
5074 p2p_update_wfd_ie_groups(p2p
);
5079 int p2p_set_wfd_ie_assoc_req(struct p2p_data
*p2p
, struct wpabuf
*ie
)
5081 wpabuf_free(p2p
->wfd_ie_assoc_req
);
5082 p2p
->wfd_ie_assoc_req
= ie
;
5087 int p2p_set_wfd_ie_invitation(struct p2p_data
*p2p
, struct wpabuf
*ie
)
5089 wpabuf_free(p2p
->wfd_ie_invitation
);
5090 p2p
->wfd_ie_invitation
= ie
;
5095 int p2p_set_wfd_ie_prov_disc_req(struct p2p_data
*p2p
, struct wpabuf
*ie
)
5097 wpabuf_free(p2p
->wfd_ie_prov_disc_req
);
5098 p2p
->wfd_ie_prov_disc_req
= ie
;
5103 int p2p_set_wfd_ie_prov_disc_resp(struct p2p_data
*p2p
, struct wpabuf
*ie
)
5105 wpabuf_free(p2p
->wfd_ie_prov_disc_resp
);
5106 p2p
->wfd_ie_prov_disc_resp
= ie
;
5111 int p2p_set_wfd_ie_go_neg(struct p2p_data
*p2p
, struct wpabuf
*ie
)
5113 wpabuf_free(p2p
->wfd_ie_go_neg
);
5114 p2p
->wfd_ie_go_neg
= ie
;
5119 int p2p_set_wfd_dev_info(struct p2p_data
*p2p
, const struct wpabuf
*elem
)
5121 wpabuf_free(p2p
->wfd_dev_info
);
5123 p2p
->wfd_dev_info
= wpabuf_dup(elem
);
5124 if (p2p
->wfd_dev_info
== NULL
)
5127 p2p
->wfd_dev_info
= NULL
;
5133 int p2p_set_wfd_assoc_bssid(struct p2p_data
*p2p
, const struct wpabuf
*elem
)
5135 wpabuf_free(p2p
->wfd_assoc_bssid
);
5137 p2p
->wfd_assoc_bssid
= wpabuf_dup(elem
);
5138 if (p2p
->wfd_assoc_bssid
== NULL
)
5141 p2p
->wfd_assoc_bssid
= NULL
;
5147 int p2p_set_wfd_coupled_sink_info(struct p2p_data
*p2p
,
5148 const struct wpabuf
*elem
)
5150 wpabuf_free(p2p
->wfd_coupled_sink_info
);
5152 p2p
->wfd_coupled_sink_info
= wpabuf_dup(elem
);
5153 if (p2p
->wfd_coupled_sink_info
== NULL
)
5156 p2p
->wfd_coupled_sink_info
= NULL
;
5161 #endif /* CONFIG_WIFI_DISPLAY */
5164 int p2p_set_disc_int(struct p2p_data
*p2p
, int min_disc_int
, int max_disc_int
,
5167 if (min_disc_int
> max_disc_int
|| min_disc_int
< 0 || max_disc_int
< 0)
5170 p2p
->min_disc_int
= min_disc_int
;
5171 p2p
->max_disc_int
= max_disc_int
;
5172 p2p
->max_disc_tu
= max_disc_tu
;
5173 p2p_dbg(p2p
, "Set discoverable interval: min=%d max=%d max_tu=%d",
5174 min_disc_int
, max_disc_int
, max_disc_tu
);
5180 void p2p_dbg(struct p2p_data
*p2p
, const char *fmt
, ...)
5185 if (!p2p
->cfg
->debug_print
)
5189 vsnprintf(buf
, sizeof(buf
), fmt
, ap
);
5190 buf
[sizeof(buf
) - 1] = '\0';
5192 p2p
->cfg
->debug_print(p2p
->cfg
->cb_ctx
, MSG_DEBUG
, buf
);
5196 void p2p_info(struct p2p_data
*p2p
, const char *fmt
, ...)
5201 if (!p2p
->cfg
->debug_print
)
5205 vsnprintf(buf
, sizeof(buf
), fmt
, ap
);
5206 buf
[sizeof(buf
) - 1] = '\0';
5208 p2p
->cfg
->debug_print(p2p
->cfg
->cb_ctx
, MSG_INFO
, buf
);
5212 void p2p_err(struct p2p_data
*p2p
, const char *fmt
, ...)
5217 if (!p2p
->cfg
->debug_print
)
5221 vsnprintf(buf
, sizeof(buf
), fmt
, ap
);
5222 buf
[sizeof(buf
) - 1] = '\0';
5224 p2p
->cfg
->debug_print(p2p
->cfg
->cb_ctx
, MSG_ERROR
, buf
);
5228 void p2p_loop_on_known_peers(struct p2p_data
*p2p
,
5229 void (*peer_callback
)(struct p2p_peer_info
*peer
,
5233 struct p2p_device
*dev
, *n
;
5235 dl_list_for_each_safe(dev
, n
, &p2p
->devices
, struct p2p_device
, list
) {
5236 peer_callback(&dev
->info
, user_data
);
5241 #ifdef CONFIG_WPS_NFC
5243 static struct wpabuf
* p2p_build_nfc_handover(struct p2p_data
*p2p
,
5245 const u8
*go_dev_addr
,
5246 const u8
*ssid
, size_t ssid_len
)
5249 u8 op_class
, channel
;
5250 enum p2p_role_indication role
= P2P_DEVICE_NOT_IN_GROUP
;
5252 buf
= wpabuf_alloc(1000);
5256 op_class
= p2p
->cfg
->reg_class
;
5257 channel
= p2p
->cfg
->channel
;
5259 p2p_buf_add_capability(buf
, p2p
->dev_capab
&
5260 ~P2P_DEV_CAPAB_CLIENT_DISCOVERABILITY
, 0);
5261 p2p_buf_add_device_info(buf
, p2p
, NULL
);
5263 if (p2p
->num_groups
> 0) {
5264 int freq
= p2p_group_get_freq(p2p
->groups
[0]);
5265 role
= P2P_GO_IN_A_GROUP
;
5266 if (p2p_freq_to_channel(freq
, &op_class
, &channel
) < 0) {
5268 "Unknown GO operating frequency %d MHz for NFC handover",
5273 } else if (client_freq
> 0) {
5274 role
= P2P_CLIENT_IN_A_GROUP
;
5275 if (p2p_freq_to_channel(client_freq
, &op_class
, &channel
) < 0) {
5277 "Unknown client operating frequency %d MHz for NFC handover",
5284 p2p_buf_add_oob_go_neg_channel(buf
, p2p
->cfg
->country
, op_class
,
5287 if (p2p
->num_groups
> 0) {
5288 /* Limit number of clients to avoid very long message */
5289 p2p_buf_add_group_info(p2p
->groups
[0], buf
, 5);
5290 p2p_group_buf_add_id(p2p
->groups
[0], buf
);
5291 } else if (client_freq
> 0 &&
5292 go_dev_addr
&& !is_zero_ether_addr(go_dev_addr
) &&
5293 ssid
&& ssid_len
> 0) {
5295 * Add the optional P2P Group ID to indicate in which group this
5296 * device is a P2P Client.
5298 p2p_buf_add_group_id(buf
, go_dev_addr
, ssid
, ssid_len
);
5305 struct wpabuf
* p2p_build_nfc_handover_req(struct p2p_data
*p2p
,
5307 const u8
*go_dev_addr
,
5308 const u8
*ssid
, size_t ssid_len
)
5310 return p2p_build_nfc_handover(p2p
, client_freq
, go_dev_addr
, ssid
,
5315 struct wpabuf
* p2p_build_nfc_handover_sel(struct p2p_data
*p2p
,
5317 const u8
*go_dev_addr
,
5318 const u8
*ssid
, size_t ssid_len
)
5320 return p2p_build_nfc_handover(p2p
, client_freq
, go_dev_addr
, ssid
,
5325 int p2p_process_nfc_connection_handover(struct p2p_data
*p2p
,
5326 struct p2p_nfc_params
*params
)
5328 struct p2p_message msg
;
5329 struct p2p_device
*dev
;
5330 const u8
*p2p_dev_addr
;
5332 enum p2p_role_indication role
;
5334 params
->next_step
= NO_ACTION
;
5336 if (p2p_parse_ies_separate(params
->wsc_attr
, params
->wsc_len
,
5337 params
->p2p_attr
, params
->p2p_len
, &msg
)) {
5338 p2p_dbg(p2p
, "Failed to parse WSC/P2P attributes from NFC");
5339 p2p_parse_free(&msg
);
5343 if (msg
.p2p_device_addr
)
5344 p2p_dev_addr
= msg
.p2p_device_addr
;
5345 else if (msg
.device_id
)
5346 p2p_dev_addr
= msg
.device_id
;
5348 p2p_dbg(p2p
, "Ignore scan data without P2P Device Info or P2P Device Id");
5349 p2p_parse_free(&msg
);
5353 if (msg
.oob_dev_password
) {
5354 os_memcpy(params
->oob_dev_pw
, msg
.oob_dev_password
,
5355 msg
.oob_dev_password_len
);
5356 params
->oob_dev_pw_len
= msg
.oob_dev_password_len
;
5359 dev
= p2p_create_device(p2p
, p2p_dev_addr
);
5361 p2p_parse_free(&msg
);
5365 params
->peer
= &dev
->info
;
5367 os_get_reltime(&dev
->last_seen
);
5368 dev
->flags
&= ~(P2P_DEV_PROBE_REQ_ONLY
| P2P_DEV_GROUP_CLIENT_ONLY
);
5369 p2p_copy_wps_info(p2p
, dev
, 0, &msg
);
5371 if (!msg
.oob_go_neg_channel
) {
5372 p2p_dbg(p2p
, "OOB GO Negotiation Channel attribute not included");
5373 p2p_parse_free(&msg
);
5377 if (msg
.oob_go_neg_channel
[3] == 0 &&
5378 msg
.oob_go_neg_channel
[4] == 0)
5381 freq
= p2p_channel_to_freq(msg
.oob_go_neg_channel
[3],
5382 msg
.oob_go_neg_channel
[4]);
5384 p2p_dbg(p2p
, "Unknown peer OOB GO Neg channel");
5385 p2p_parse_free(&msg
);
5388 role
= msg
.oob_go_neg_channel
[5];
5390 if (role
== P2P_GO_IN_A_GROUP
) {
5391 p2p_dbg(p2p
, "Peer OOB GO operating channel: %u MHz", freq
);
5392 params
->go_freq
= freq
;
5393 } else if (role
== P2P_CLIENT_IN_A_GROUP
) {
5394 p2p_dbg(p2p
, "Peer (client) OOB GO operating channel: %u MHz",
5396 params
->go_freq
= freq
;
5398 p2p_dbg(p2p
, "Peer OOB GO Neg channel: %u MHz", freq
);
5399 dev
->oob_go_neg_freq
= freq
;
5401 if (!params
->sel
&& role
!= P2P_GO_IN_A_GROUP
) {
5402 freq
= p2p_channel_to_freq(p2p
->cfg
->reg_class
,
5405 p2p_dbg(p2p
, "Own listen channel not known");
5406 p2p_parse_free(&msg
);
5409 p2p_dbg(p2p
, "Use own Listen channel as OOB GO Neg channel: %u MHz", freq
);
5410 dev
->oob_go_neg_freq
= freq
;
5414 os_memcpy(params
->go_dev_addr
, msg
.group_id
, ETH_ALEN
);
5415 params
->go_ssid_len
= msg
.group_id_len
- ETH_ALEN
;
5416 os_memcpy(params
->go_ssid
, msg
.group_id
+ ETH_ALEN
,
5417 params
->go_ssid_len
);
5420 if (dev
->flags
& P2P_DEV_USER_REJECTED
) {
5421 p2p_dbg(p2p
, "Do not report rejected device");
5422 p2p_parse_free(&msg
);
5426 if (!(dev
->flags
& P2P_DEV_REPORTED
)) {
5427 p2p
->cfg
->dev_found(p2p
->cfg
->cb_ctx
, p2p_dev_addr
, &dev
->info
,
5428 !(dev
->flags
& P2P_DEV_REPORTED_ONCE
));
5429 dev
->flags
|= P2P_DEV_REPORTED
| P2P_DEV_REPORTED_ONCE
;
5431 p2p_parse_free(&msg
);
5433 if (role
== P2P_GO_IN_A_GROUP
&& p2p
->num_groups
> 0)
5434 params
->next_step
= BOTH_GO
;
5435 else if (role
== P2P_GO_IN_A_GROUP
)
5436 params
->next_step
= JOIN_GROUP
;
5437 else if (role
== P2P_CLIENT_IN_A_GROUP
) {
5438 dev
->flags
|= P2P_DEV_GROUP_CLIENT_ONLY
;
5439 params
->next_step
= PEER_CLIENT
;
5440 } else if (p2p
->num_groups
> 0)
5441 params
->next_step
= AUTH_JOIN
;
5442 else if (params
->sel
)
5443 params
->next_step
= INIT_GO_NEG
;
5445 params
->next_step
= RESP_GO_NEG
;
5451 void p2p_set_authorized_oob_dev_pw_id(struct p2p_data
*p2p
, u16 dev_pw_id
,
5453 const u8
*own_interface_addr
)
5456 p2p
->authorized_oob_dev_pw_id
= dev_pw_id
;
5457 if (dev_pw_id
== 0) {
5458 p2p_dbg(p2p
, "NFC OOB Password unauthorized for static handover");
5462 p2p_dbg(p2p
, "NFC OOB Password (id=%u) authorized for static handover",
5465 p2p
->go_intent
= go_intent
;
5466 os_memcpy(p2p
->intended_addr
, own_interface_addr
, ETH_ALEN
);
5469 #endif /* CONFIG_WPS_NFC */
5472 int p2p_set_passphrase_len(struct p2p_data
*p2p
, unsigned int len
)
5474 if (len
< 8 || len
> 63)
5476 p2p
->cfg
->passphrase_len
= len
;
5481 void p2p_set_vendor_elems(struct p2p_data
*p2p
, struct wpabuf
**vendor_elem
)
5483 p2p
->vendor_elem
= vendor_elem
;
5487 void p2p_go_neg_wait_timeout(void *eloop_ctx
, void *timeout_ctx
)
5489 struct p2p_data
*p2p
= eloop_ctx
;
5492 "Timeout on waiting peer to become ready for GO Negotiation");
5493 p2p_go_neg_failed(p2p
, -1);
5497 void p2p_set_own_pref_freq_list(struct p2p_data
*p2p
,
5498 const unsigned int *pref_freq_list
,
5503 if (size
> P2P_MAX_PREF_CHANNELS
)
5504 size
= P2P_MAX_PREF_CHANNELS
;
5505 p2p
->num_pref_freq
= size
;
5506 for (i
= 0; i
< size
; i
++) {
5507 p2p
->pref_freq_list
[i
] = pref_freq_list
[i
];
5508 p2p_dbg(p2p
, "Own preferred frequency list[%u]=%u MHz",
5509 i
, p2p
->pref_freq_list
[i
]);
5514 struct wpabuf
* p2p_build_probe_resp_template(struct p2p_data
*p2p
,
5517 struct wpabuf
*ies
, *buf
;
5518 u8 addr
[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
5521 ies
= p2p_build_probe_resp_ies(p2p
, NULL
, 0);
5523 wpa_printf(MSG_ERROR
,
5524 "CTRL: Failed to build Probe Response IEs");
5528 buf
= wpabuf_alloc(200 + wpabuf_len(ies
));
5534 ret
= p2p_build_probe_resp_buf(p2p
, buf
, ies
, addr
, freq
);